AAC	Alter All Commands



AAD	Alter All Data



AAO	Add And Overflow



AAR	Alter At Random



AB	Add Backwards



ABC	AlphaBetize Code



ABR	Add Beyond Range



ACC	Advance CPU Clock



ACDC	Allow Controller to Delete Contents



ACDP	Allow Controller to Die Peacefully



ACQT	Advance Clock to Quitting Time



ADB	Another Dumb Bug



AEE	Absolve Engineering Errors



AFF	Add Fudge Factor



AFHB	Align Fullword on Halfword Boundary



AFP	Abnormalize Floating Point



AFR	Abort Funny Routine



AFVC	Add Finagle's Variable Constant



AGB	Add GarBage



AGWA	Add and Get Wrong Answer



AI	Add Improper



AIB	Attack Innocent Bystander



AIB	Attack Innocent Bystanders



AISG	Access and Improve Student Grade



AMM	Add Mayo and Mustard



AMM	Answer My Mail



AMS	Add Memory to System



ANC	ANnoy Consultant



AOI	Annoy Operator Immediate



AR	Advance Rudely



AR	Alter Reality



ARN	Add and Reset to Non-zero



ARN	Add and Reset to Nonzero



ARZ	Add and Reset to Zero



AS	Add Sideways



ASQGSA	ASCII Stupid Question, Get a Stupid ANSI



AT	Accumulate Trivia



AWP	Argue With Programmer



AWTT	Assemble With Tinker Toys



BA	Branch Anywhere



BAC	Branch to Alpha Centauri



BAD	Branch And Die



BAD	Branch to Auto Destruct



BAF	Blow All Fuses



BAH	Branch And Hang



BALC	Branch And Link Cheeseburger



BAP	Branch And Punt



BAW	Bells And Whistles



BB	Branch on Bug



BBBB	Byte Baudy Bit and Branch



BBBF	Branch on Bit Bucket Full



BBD	Branch on Bastille Day



BBI	Branch on Burned-out Indicator



BBIL	Branch on Burned-out Indicator Light



BBLB	Branch on Blinking Light Bulb



BBT	Branch on Binary Tree



BBW	Branch Both Ways



BCB	Burp and Clear Bytes



BCF	Branch on Chip box Full



BCIL	Branch Creating Infinite Loop



BCR	Backspace Card Reader



BCS	Branch and Crash System



BCU	Be Cruel and Unusual



BD	Backspace Disk



BD	Branch to Data



BDC	Break Down and Cry



BDI	Branch to Data Indirect



BDM	Branch and Disconnect Memory



BDT	Burn Data Tree



BDU	Branch on Dense User



BE	Branch Everywhere



BEW	Branch Either Way



BF	Belch Fire



BF	Blow Fuse



BF	Branch Forever



BFD	Branch on Full Disk



BFF	Branch and Form Feed



BFM	Be Fruitful and Multiply



BH	Branch and Hang



BIR	Branch Inside Ranch



BIRM	Branch on Index Register Missing



BLC	Branch and Loop Continuous



BLI	Branch and Loop Infinite



BLM	Branch, Like, Maybe



BLMWM	Branch, Like, Maybe, Wow, Man



BLP	Boot from Line Printer



BLR	Branch and Lose Return



BLSH	Buy Low, Sell High



BLT	Break Little Thing



BM	Branch Maybe



BMI	Blow up Memory Immediate



BMI	Branch on Missing Index



BMI	Branch to Muncee Immediate



BMP	Branch and Make Popcorn



BMR	Branch Multiple Registers



BMUS	Beam Me Up, Scotty



BNA	Branch to Nonexistant Address



BNCB	Branch and Never Come Back



BNL	Become a Neo-Luddite



BNR	Branch for No Reason



BOB	Branch On Bug



BOD	Beat On Disk



BOD	Branch on Operator Desperate



BOH	Branch On Humidity



BOH	Branch on Operator High



BOHP	Bribe Operator for Higher Priority



BOI	Byte Operator Immediately



BOP	Boot OPerator



BOT	Branch On Tree



BPB	Branch on Program Bug



BPDI	Be Polite, Don't Interrupt



BPIM	Bury Programmer In Manuals



BPL	Branch PLease



BPM	Become a Psych Major



BPO	Branch on Power Off



BPO	Branch on Power On



BPP	Branch and Pull the Plug



BR	Byte and Run



BRA	Branch to Random Address



BRB	BRanch on Beaver



BRH	BRanch and Hang



BRI	BRanch Indefinitely



BRL	BRanch and Leak



BRO	BRanch and Overheat



BRO	BRanch to Oblivion



BS	Behave Strangely



BSC	Branch on Second Coming



BSC	Burst Selector Channel



BSD	BackSpace Disk



BSI	Back up Sewer Immediate



BSI	Backup Sewer Immediately



BSM	Branch and Scramble Memory



BSO	Branch on Sleepy Operator



BSP	BackSpace Punch



BSR	Branch and Stomp Registers



BSS	Branch on SunSpot



BSST	BackSpace and Stretch Tape



BTD	Branch on Time of Day



BTD	Byte The Dust



BTI	Blow Trumpet Immediately



BTJ	Branch and Turn Japanese



BTO	Branch To Oblivion



BTW	Branch on Third Wednesday



BU	Branch Unexpectedly



BUTI	Blow Up Terminal Immediately



BVS	Branch and Veer South



BW	Branch on Whim



BWC	Branch When Convenient



BWF	Busy, Wait Forever



BWOP	BeWilder OPerator



BYDS	Beware Your Dark Side



BYTE	BYte TEst



CAC	Calling All Cars



CAC	Cash And Carry



CAF	Convert ASCII to Farsii



CAI	Corrupt Accounting Information



CAIL	Crash After I Leave



CAR	Cancel Accounts Receivable



CAT	Confused And Tired



CB	Consult Bozo



CBA	Compare and Branch Anyway



CBBR	Crash and Blow Boot Read-only memory



CBNC	Close, But No Cigar



CBS	Clobber BootStrap



CC	Call Calvery



CC	Compliment Core



CCB	Chocolate Chip Byte-mode



CCB	Consult Crystal Ball



CCC	Crash if Carry Clear



CCCP	Conditionally Corrupt Current Process



CCD	Choke Cough and Die



CCD	Clear Core and Dump



CCR	Change Channels at Random



CCS	Chinese Character Set



CCWR	Change Color of Write Ring



CD	Complement Disk



CDC	Clear Disk and Crash



CDC	Close Disk Cover



CDIOOAZ	Calm Down, It's Only Ones And Zeroes



CDS	Change Disk Speed



CEMU	Close Eyes and Monkey with User space



CEX	Call EXterminator



CF	Come From [replaces goto]



CFE	Call Field Engineer



CFP	Change and Forget Password



CFS	Corrupt File Structure



CG	Convert to Garbage



CH	Create Havoc



CHCJ	Compare Haig to Christine Jorgensen



CHPAMR	CHase Pointers Around Machine Room



CHSE	Compare Half-words and Swap if Equal



CIB	Change Important Byte



CIC	Cash In Chips



CID	Compare and Ignore Data



CIMM	Create Imaginary Memory Map



CIZ	Clear If Zero



CLBR	CLoBber Register



CLBRI	CLoBber Register Immediate



CM	Circulate Memory



CMD	CPU Melt Down



CMD	Compare Meaningless Data



CMI	Clobber Monitor Immediate



CML	Compute Meaning of Life



CMP	Create Memory Prosthesis



CMS	Click MicroSwitch



CN	Compare Nonsensically



CNB	Cause Nervous Breakdown



CNS	Call Nonexistent Subroutine



COCS	Copy Object Code to Source



COD	Crash On Demand



COLB	Crash for Operator's Lunch Break



COM	Clear Operator's Mind



COMF	COMe From



CON	Call Operator Now



COS	Copy Object code to Source file



COWYHU	Come Out With Your Hands Up



CP	Compliment Programmer



CP%FKM	CPU \(em FlaKeout Mode



CP%WM	CPU \(em Weird Mode



CPB	Create Program Bug



CPN	Call Programmer Names



CPPR	Crumple Printer Paper and Rip



CRASH	Continue Running After Stop or Halt



CRB	CRash and Burn



CRD	Confirm Rumor by Denial



CRM	CReate Memory



CRM	Clear Random Memory



CRN	Compare with Random Number



CRN	Convert to Roman Numerals



CRYPT	reCuRsive encrYPt Tape



CS	Crash System



CSL	Curse and Swear Loudly



CSN	Call Supervisor Names



CSNIO	Crash System on Next I/O



CSS	Crash Subsidiary Systems



CSU	Call Self Unconditional



CTDMR	Change Tape Density, Mid Record



CTT	Call Time and Temperature



CU	Convert to Unary



CUC	Cheat Until Caught



CVFL	ConVert Floating to Logical



CVFP	ConVert Fortran to Pascal



CVG	ConVert to Garbage



CVU	ConVert to Unary



CWAH	Create Woman And Hold



CWB	Carry With Borrow



CWDC	Cut Wires and Drop Core



CWG	Chase Wild Goose



CWGK	Compare Watt to Genghis Khan



CWIT	Compare Watt to Ivan the Terrible



CWM	Compare Watt to Mussolini



CWOM	Complement Write-Only Memory



CZZC	Convert Zone to Zip Code



DA	Develop Amnesia



DAB	Delete All Bugs



DAC	Divide And Conquer



DAD	Destroy A-Disk



DAO	Divide And Overflow



DAP	De-select Active Peripheral



DAUF	Delete All Useless Files



DB	Drop Bits



DBL	Desegregate Bus Lines



DBR	DeBase Register



DBTP	Drop Back Ten and Punt



DBZ	Divide By Zero



DC	Degauss Core



DC	Divide and Conquer



DCAD	Dump Core And Die



DCD	Drop Cards Double



DCGC	Dump Confusing Garbage to Console



DCI	Disk Crash Immediate



DCON	Disable CONsle



DCR	Double-precision CRash



DCT	Drop Cards Triple



DD	Destroy Disk



DD	Drop Disk



DDC	Dally During Calculations



DDOA	Drop Dead On Answer



DDS	Delaminate Disk Surface



DDT	Debug Program



DDWB	Deposit Directly in Waste Basket



DEB	Disk Eject Both



DEC	Decompile Executable Code



DEI	Disk Eject Immediate



DEM	Disk Eject Memory



DFA	Disable FAns



DGO	Decrement the Grades of Others



DGT	Dispense Gin and Tonic



DHTPL	Disk Head Three Point Landing



DIA	Develop Ineffective Address



DICE	Delete Invalid Customer Engineer



DIE	DIsable Everything



DIF	DIsable Fuses



DIG	DIsable Gravity



DIH	Disable Interrupts and Hang



DIRFO	Do It Right For Once



DISC	DISmount CPU



DK	Destroy Klingons



DKP	Disavow Knowledge of Programmer



DLN	Don't Look Now



DLP	Drain Literal Pool



DMAG	Do MAGic



DMNS	Do what i Mean, Not what i Say



DMP	Destroy Memory Protect key



DMPE	Decide to Major in Phys. Ed.



DMPK	Destroy Memory Protect Key



DMZ	Divide Memory by Zero



DND	Destroy Neighbor's Data



DNPG	Do Not Pass Go



DO	Divide and Overflow



DO	Divide and Overflow [IBM PC]



DOC	Drive Operator Crazy



DOV	Divide and OVerflow



DP	Destroy Peripherals



DPC	Decrement Program Counter



DPCS	Decrement Program Counter Secretly



DPK	Destroy storage Protect Key



DPMI	Declare Programmer Mentally Incompetent



DPN	Double Precision No-op



DPR	Destroy PRogram



DPS	Disable Power Supply



DR	Detach Root



DRAF	DRAw Flowchart



DRAM	Decrement RAM



DRBA	Deposit Round-off in my Bank Account



DRD	DRop Dead



DRI	Disable Random Interrupt



DROM	Destroy ROM



DRT	Disconnect Random Terminal



DS	Deadlock System



DSD	Dismount System Disk



DSI	Do Something Interesting



DSO	Disable System Operator



DSP	Degrade System Performance



DSR	Detonate Status Register



DSTD	Do Something Totally Different



DSUIT	Do Something Utterly, Indescribably Terrible



DT%FFP	DecTape \(em unload and Flappa FlaP



DT%SHO	DecTape \(em Spin Hubs Opposite



DTB	Destructively Test Bit



DTC	Destroy This Command



DTE	Decrement Telephone Extension



DTI	Do The Impossible



DTRT	Do The Right Thing



DTVFL	Destroy Third Variable From Left



DU	Dump User



DUD	Do Until Dead



DW	Destroy World



DWIM	Do What I Mean



DWIT	Do What I'm Thinking



DWIW	Do What I Want



EA	Enable Anything



EAC	Emulate Acoustic Coupler



EAL	Enable AC to Logic rack



EAO	Enable AC to Operator



EBB	Edit and Blank Buffer



EBB	Empty Bit Bucket



EBR	Erase Before Reading



EBRS	Emit Burnt Resistor Smell



EC	Eat Card



ECF	Explode and Catch Fire



ECL	Early Care Lace



ECO	Electrocute Computer Operator



ECP	Erase Card Punch



ED	Eject Disk



ED	Execute Data



EDD	Eat Disk and Die



EDIT	Erase Data and Increment Time



EDP	Emulate Debugged Program



EDR	Emit Deadly Radiation



EDR	Execute Destructive Read



EDS	Execute Data Segment



EEOIFNO	Execute Every Other Instruction From Now On



EEP	Erase Entire Program



EFB	Emulate Five-volt Battery



EFD	Eject Floppy Disk



EFD	Emulate Frisbee using Disk pack



EFE	Emulate Fatal Error



EHC	Emulate Headless Chicken



EIA	Elvis Is Alive



EIAO	Execute In Any Order



EIO	Erase I/O page



EIO	Execute Invalid Op-code



EIO	Execute Invalid Opcode



EIOC	Execute Invalid Op-Code



EJD	EJect Disk



EJD%V	EJect Disk \(em with initial velocity V



ELP	Enter Loop Permenantly



EM	EMulate 407



EM	Evacuate Memory



EMIF	Erase Most Important File



EMM	Emulate More Memory



EMPC	EMulate Pocket Calculator



EMSE	Edit and Mark Something Else



EMSL	Entire Memory Shift Left



EMT	Electrocute Maintenance Technician



EMW	Emulate Maytag Washer



ENA	ENable Anything



ENE	ENable Everything



END	Erase Neighbor's Data



ENF	Emit Noxious Fumes



ENG	ENable Gravity



ENO	Emulate No-Op



EO	Electrocute Operator



EOB	Execute Operator and Branch



EOI	Explode On Interrupt



EOS	Erase Operating System



EP	Execute Programmer



EPD	Explode Peripheral Device



EPI	Execute Programmer Immediate



EPITS	Execute Previous Instruction Then Skip



EPL	Emulate Phone Line



EPP	Eject Printer Paper



EPS	Electrostatic Print and Smear



EPS	Execute Program Sideways



EPSW	Execute Program Status Word



EPT	Erase Process Table



EPT	Erase Punched Tape



ERIC	Eject Random Integrated Circuit



ERM	Erase Reserved Memory



EROM	Erase Read-Only Memory



EROS	Erase Read-Only Storage



EROS	Erase Read-Only Storage [Everex int]



ERS	Erase Read-only Storage



ESB	Eject Selectric Ball



ESC	Emulate System Crash



ESD	Eject Spinning Dish



ESL	Exceed Speed of Light



ESP	Enable SPrinkler system



ETI	Execute This Instruction



ETM	Emulate Trinary Machine



ETPH	E. T. Phone Home



EVC	Execute Verbal Commands



EWD	Enter Warp Drive



EWM	Enter Whimsy Mode



EXB	EXcrement and Branch



EXE	EXecute Engineer



EXI	EXecute Invalid operation



EXO	EXecute Operator



EXOP	EXecute OPerator



EXP	EXecute Programmer



EXPP	EXecute Political Prisoner



FAY	Fetch Amulet of Yendor



FB	Find Bugs



FC	Fry Console



FCJ	Feed Card and Jam



FCJ	Feed Cards and Jam



FD	Forget Data



FDR	Feed Disk Randomly



FERA	Forms Eject and Run Away



FFF	Form Feed Forever



FLD	FLing Disk



FLI	Flash Lights Impressively



FM	Forget Memory



FMP	Finish My Program



FOPC	False Out-of-Paper Condition



FPC	Feed Paper Continuously



FPT	Fire Photon Torpedoes



FRG	Fill with Random Garbage



FRS	Fetch Ring of Sauron



FS	Feign Sleep



FSM	Fold, Spindle, and Mutilate



FSR	Form Skip and Runaway



FSRA	Forms Skip and Run Away



FYBR	Follow Yellow Brick Road



GAP	Grade All Projects



GBB	Go to Back of Bus



GCAR	Get Correct Answer Regardless



GCR	Generate Confusing Results



GDP	Grin Defiantly at Programmer



GDR	Grab Degree and Run



GENT	GENerate Thesis



GEW{JO}	Go to the End of the World {Jump Off}



GFD	Go Forth and Divide



GFM	Go Forth and Multiply



GIE	Generate Irreversible Error



GL	Get Lost



GLC	Generate Lewd Comment



GMC	Generate Machine Check



GMCC	Generate Machine Check and Cash



GND	Guess at Next Digit



GORS	GO Real Slow



GPCR	Generate Petty Cache Request



GR	Get Real



GREM	Generate Random Error Message



GREP	Global Ruin, Expiration, and Purgation



GRMC	Generate Rubber Machine Check



GS	Get Strange



GSB	Gulp and Store Bytes



GSI	Generate Spurious Interrupts



GSU	Geometric Shift Up



GTJ	Go To Jail



HAC	Hold All Calls



HACF	Halt And Catch Fire



HAH	Halt And Hang



HBW	Hang Bus and Wait



HCF	Halt and Catch Fire



HCP	Hide Central Processor



HCRS	Hang in CRitical Section



HDH	Hi Dee Ho



HDO	Halt and Disable Operator



HDRW	Halt and Display Random Word



HELP	Hinder Everyone with Little Productivity



HELP	Type 'No Help Available'



HEO	Halt and Execute Operator



HF	Hide File



HGD	Halt, Get Drunk



HHB	Halt and Hang Bus



HIS	Halt in Imposible State



HOO	Hide Operator's Output



HRPR	Hang up and Ruin Printer Ribbon



HSC	Halt on System Crash



HSJ	Halt, Skip and Jump



HTC	Halt and Toss Cookies



HTS	Halt and Throw Sparks



HUAL	Halt Until After Lunch



HUP	Hang Up Phone



HWP	Halt Without Provocation



IA	Illocical And



IAE	Ignore All Exceptions



IAI	Inquire And Ignore



IAND	Illogical AND



IAR	Ignore All Requests



IB	Insert Bug



IBM	Increment and Branch to Muncee



IBP	Insert Bug and Proceed



IBR	Insert Bugs at Random



ICB	Interrupt, Crash and Burn



ICM	Immerse Central Memory



ICMD	Initiate Core Melt Down



ICR	Incur Costly Repair [Sun Tempest]



ICSP	Invert Crt Screen Picture



IDC	Initiate Destruct Command



IDI	Invoke Divine Intervention



IDNOP	InDirect No-OP



IDPS	Ignore Disk Protect Switch



IEOF	Ignore End Of File



IF	Invoke Force



IGI	Increment Grade Immediate



IGIT	Increment Grade Immediate Twice



IGO	Increment Grade Overnight



IHC	Initiate Head Crash



IHTFP	Increment Hormones, Test For Puberty



II	Inquire and Ignore



IIB	Ignore Inquiry and Branch



IIC	Insert Invisible Characters



IIL	Irreversable Infinite Loop



IM	Imagine Memory



IMBP	Insert Mistake and Blame Programmer



IMP	Imitate Monty Python



IMPG	IMPress Girlfriend



IMV	IMpress Visitors



INCAM	INCrement Arbitrary Memory



ING	INquire and iGnore



INI	Ignore Next Instruction



INOP	Indirect No-OP



INR	INstigate Rumor



INW	INvalidate Warranty



IOI	Ignore Operator's Instruction



IOR	Illogical OR



IOS	Ignore Operating System



IP	Increment and Pray



IPI	Ignore Previous Instruction



IPM	Ignore Programmer's Mistakes



IPOP	Interrupt Processor, Order Pizza



IPS	Incinerate Power Supply



IPS	Increment Power Supply



IPT	Ignite Paper Tape



IRB	Invert Record and Branch



IRBI	Insert Random Bits Indexed



IRC	Insert Random Commands



IRE	Insert Random Errors



IRI	Ignore Rude Interrupts



IRPF	Infinite Recursive Page Fault



ISC	Ignore Supervisor Calls



ISC	Ignore System Crash



ISC	Insert Sarcastic Comments



ISI	Increment and Skip on Inifinity



ISP	Increment and Skip on Pi



ISTK	Invert STacK



ITML	Initiate Termites into Macro Library



IU	Ignore User[s]



IXOR	Illogical eXclusive OR



IZ	Ignore Zeroes



JAA	Jump Almost Always



JBS	Jump and Blow Stack



JCI	Jump to Current Instruction



JFM	Jump on Full Moon



JHRB	Jump to H&R Block



JLP	Jump and Lose Pointer



JLR	Jump and Lose Return



JMAT	JuMp on Alternate Thursdays



JN	Jump to Nowhere



JNL	Jump when programmer is Not Looking



JOB	Jump On Beaver



JOM	Jump Out of Memory



JOM	Jump Over Moon



JOP	Jump OPerator



JPA	Jump when Pizza Arrives



JRAN	Jump RANdom



JRCF	Jump Relative and Catch Fire



JRGA	Jump Relative and Get Arrested



JRL	Jump to Random Location



JRSR	Jump to Random SubRoutine



JSC	Jump on System Crash



JSOR	Jump Somewhere Over Rainbow



JSU	Jump Self Unconditional



JT	Jump if Tuesday



JTT	Jump and Tangle Tape



JTZ	Jump to Twilight Zone



JWN	Jump When Necessary



KCE	Kill Consultant on Error



KCE	Kill repairman [CE]



KDO	Knock Disk Over



KEPITU	Kill Every Process In The Universe



KOP	Kill OPerator



KP	Krunch Paper



KPR	Kill PRogrammer



KSR	Keyboard Shift Right



KUD	Kill User's Data



KWWE	Kill Wicked Witch of East



KWWW	Kill Wicked Witch of West



LAC	Lose All Communication



LAGW	Load And Go Wrong



LAP	Laugh At Program



LAP	Laugh At Programmer



LCC	Load and Clear Core



LCD	Launch Cartridge Disk



LCK	Lock Console Keyswitch



LEB	Link Edit Backwards



LIA	Load Ineffective Address



LMB	Lose Message and Branch



LMO	Load and Mug Operator



LMYB	Logical MaYBe



LN	Lose inode Number



LNP	Load N digits of Pi



LOSM	Log Off System Manager



LP%PAS	Line Printer \(em Print And Smear



LP%RDD	Line Printer \(em Reverse Drum Direction



LP%TCR	Line Printer \(em Tangle and Chew Ribbon



LPA	Lead Programmer Astray



LPRTC	Load Program counter from Real Time Clock



LR	Load Revolver



LRA	Load RetroActively



LRB	Lose Record and Branch



LRD	Load Random Data



LSPSW	Load and Scramble PSW



LTS	Link To Sputnik



LTS	Loop Till Smokes



LUM	LUbricate Memory



LWE	Load WhatEver



LWM	Load Write-only Memory



MAB	Melt Address Bus



MAN	Make Animal Noises



MAZ	Multiply Answer by Zero



MBC	Make Batch Confetti



MBF	Multiply and Be Fruitful



MBH	Memory Bank Hold-up



MBTD	Mount Beatles on Tape Drive



MBTOL	Move Bug To Operator's Lunch



MC	Move Continuous



MD	Move Devious



MDB	Move and Drop Bits



MDC	Make Disk Crash



MDDHAF	Make Disk Drive Hop Across Floor



MFO	Mount Female Operator



MILI	Move It or Lose It



MLB	Memory Left shift and Branch



MLP	Make Lousy Program



MLP	Multiply and Lose Precision



MLR	Move and Lose Record



MMF	Melt Main Frame



MMLG	Make Me Look Good



MNI	Misread Next Instruction



MOG	Make Operator Growl



MOP	Modify Operator's Personality



MPLP	Make Pretty Light Pattern



MRZ	Make Random Zap



MSGD	Make Screen Go Dim



MSP	Mistake Sign for Parity



MSPI	Make Sure Plugged In



MSR	Melt Special Register



MST	Mount Scotch Tape



MTE	Mangle Tape on Exit



MTI	Make Tape Invalid



MUG	Make Ugly Graphics



MUM	Multi-Use Mnemonics



MW	Malfunction Whenever



MW	Multiply Work



MWC	Move and Wrap Core



MWT	Malfunction Without Telling



NBC	Negate By Clearing



NCW	Notch Carriage and Way



NMI	Negate Most Integers



NOP	Needlessly Omit Pointer



NPC	Normalize Program Counter



NPN	No Program Necessary [VAX]



NTGH	Not Tonight, i've Got a Headache



OBB	Overflow Bit Bucket



OCF	Open Circular File



OMC	Obscene Message to Console



OMC	Overheat Memory Chip



OML	Obey Murphy's Laws



OPI	Order Pizza Immediately



OPP	Order Pizza for Programmer



OSI	Overflow Stack Immediate



OSI	Overflow Stack Indefinite



OSP	Open Six-Pack



OTL	Out To Lunch



OU	Offend User



P$*!	Punch Obscenity



PA	Punch in ASCII



PAL	Pack And Leave



PAS	Print And Smear



PAUD	PAUse Dramatically



PAZ	Pack Alpha Zone



PAZ	Pack Alpha and drop Zones



PBC	Print and Break Chain



PBD	Print and Break Drum



PBL	Pack Bags and Leave



PBM	Pop Bubble Memory



PBPBPBP	Place Backup in Plain Brown Paper Bag Please



PBST	Play Batch mode Star Trek



PCB	Pause for Coffee Break



PCD	PunCh Disk



PCI	Pleat Cards Immediate



PCR	Print and Cut Ribbon



PCS	Push to Centre of Stack



PD	Play Dead



PD	Punch Disk



PDLD	Power Down and Lock Door [to computer room]



PDSK	Punch DiSK



PEHC	Punch Extra Holes in Cards



PEP	Print on Edge of Paper



PFD	Punt on Fourth Down



PFE	Print Floating Eye



PFML	Print Four Million Lines



PG	Print Garbage



PHO	Pull Hair Out



PI	Punch Invalid



PIBM	Pretend to be an IBM



PIC	Print Illegible Characters



PIC	Print Invalid Character



PIC	Punch Invalid Character



PLSC	Perform Light Show on Console



PNIH	Place Needle In Haystack



PNRP	Print Nasty Replies to Programmer



PO	Punch Operator



POCL	Punch Out Console Lights



POG	Print Only Greek



POP	Pop Or Push



POPI	Punch OPerator Immediate



POPN	Punch OPerator's Nose



PPA	Print Paper Airplanes



PPC	Purge Pascal Compiler [HP 3000]



PPL	Perform Perpetual Loop



PPP	Print Programmer's Picture



PPR	Play Punk Rock



PPSW	Pack Program Status Word



PPSW	Pack Progran Status Word



PRS	PRint and Smear



PSP	Print and Shred Paper



PSR	Print and Shred Ribbon



PTP	Produce Toilet Paper



PUO	Perform Unknown Operation



PVLC	Punch Variable Length Card



PWP	Print Without Paper



PWS	create PoWer Surge



PYS	Program YourSelf



QBDH	Quit and Become a DeadHead



QWYA	Quit While Your Ahead



RA	Randomize Answer



RAM	Randomly Access Memory



RAM	Read Ambiguous Memory



RAN	RANdom opcode [similar to 16-bit what gate]



RASC	Read And Shred Card



RAST	Read And Shred Tape



RAU	Ridicule All Users



RBAO	Ring Bell and Annoy Operator



RBLY	Restore Back-up from Last Year



RBT	Read Blank Tape



RBT	Rewind and Break Tape



RC	Rewind Core



RCAJ	Read Card And Jam



RCB	Read Command Backwards



RCB	Run Clock Backwards



RCC	Read Card and Chew



RCCP	Randomly Corrupt Current Process



RCF	Rewind Cabinet Fans



RCKG	Read Count Key and Garbage



RCL	Rotate Carry Left



RCP	Reschedule Car Payments



RCR	Rewind Card Reader



RCRV	Randomly Convert to Reverse Video



RCS	Read Card and Scramble data



RCSD	Read Card and Scramble Data



RD	Randomize Data



RD	Reverse Directions



RDA	Refuse to Disclose Answer



RDB	Replace Database with Blanks



RDB	Run Disk Backwards



RDD	Reverse Disk Drive



RDDBF	Rock Disk Drive Back and Forth



RDEB	Read and Drop Even number of Bits



RDF	Randomize Directory Filenames



RDI	Reverse Drum Immediate



RDI	Reverse Drun Immediate



RDI	Rewind Disk Immediate



RDR	Reverse Disk Rotation



RDS	ReaD Sideways



RENVR	REName Variables Randomly



RET	Read and Erase Tape



RF	Read Fingerprints



RG	Record Garbage



RHNEZ	Randomize and Halt if Not Equal to Zero



RHO	Randomize and Hold all Output



RIC	Rotate Illogical thru Carry



RID	Read Invalid Data



RIG	Read Inter-record Gap



RIOP	Rotate I/O Ports



RIR	Read Invalid Record



RIRG	Read Inter-Record Gap



RJE	Return Jump and Explode



RLC	Relocate and Lose Core



RLC	Reread Last Card



RLC	Rotate Left with Carolyn



RLI	Rotate Left Indefinitely



RLP	Refill Light Pen



RLP	Rewind Line Printer



RM	Ruin My files



RMI	Randomize Memory Immediate



RMM	Read Manager's Mind



RMT	ReMove Trap



RMV	Remove Memory Virtues



RN	Read Noise



RNBS	Reflect Next Bus Signal



RNR	Read Noise Record



ROC	Randomize Op Codes



ROC	Rotate Outward from Center



ROD	ROtate Diagonally



ROM	Read Operator's Mind



ROO	Rub Out Operator



ROOP	Run Out Of Paper



ROPF	Read Other People's Files



ROS	Reject Operating System



ROS	Return On Shield



RP	Read Printer



RPB	Raise Parity Bits



RPB	Read Print and Blush



RPB	Reverse Parity and Branch



RPBR	Reverse Parity and BRanch



RPC	Rotate Program Counter



RPM	Read Programmer's Mind



RPU	Read character and Print Upsidedown



RRC	Rotate Random thru Carry



RRR	Randomly Rotate Register



RRR	Read Record and Run away



RRR	Read Record and Run-away



RRRL	Random Rotate Register Left



RRRR	Random Rotate Register Right



RRSTC	Return on Ruby Slippers Triple-Click



RRT	Record and Rip Tape



RS	Random Slew



RSD	on Read error Self-Destruct



RST	Rewind and Stretch Tape



RSTOM	Read from STore-Only Memory



RT	Reduce Throughput



RTP	Reduce ThroughPut



RTS	Return To Sender



RVAC	Return from VACation



RWC	ReWind and Crash heads



RWCR	ReWind Card Reader



RWD	ReWind Disk



RWE	Run Without Error



RWF	Read Wrong File



RWT	Read/Write while stretching Tape



SA	Store Anywhere



SAD	Search And Destroy



SAI	Skip All Instructions



SAK	Snooze At Keyboard



SAS	Show Appendix Scar



SAS	Sit And Spin



SBE	Swap Bits Erratically



SBF	Skip on Bitbucket Full



SC	Scramble Channels



SC	Shred Cards



SCB	Spindle Card and Belch



SCCA	Short Circuit on Correct Answer



SCD	Shuffle and Cut Dec



SCH	Slit Cards Horizontal



SCI	Shred Cards Immediate



SCM	Set for Crash Mode



SCOM	Set Cobol-Only Mode



SCP	SCatter Printer



SCRRC	SCRamble Register Contents



SCST	Switch Channel to Star Trek



SCTR	Stick Card To Reader



SD	Scramble Directory



SD	Slip Disk



SDC	Spool Disk to Console



SDD	Seek and Destroy Data



SDD	Spin Disk Dry



SDDB	Snap Disk Drive Belt



SDE	Solve Differential Equations



SDI	Self Destruct Immediate



SDM	Search and Destroy Memory



SDR	Slam Down Rondo [worst soda ever made]



SEB	Stop Eating and Burp



SEOB	Set Every Other Bit



SESUR	Sing Elvis Songs Until he Returns



SEX	Set EXecution register



SEX	Sign EXtend



SFH	Set Flags to Half-mast



SFP	Send For Pizza



SFR	Send For Reinforcements



SFT	Stall For Time



SFTT	Strip Form Tractor Teeth



SHAB	SHift A Bit



SHABM	SHift A Bit More



SHB	Stop and Hang Bus



SHCD	SHuffle Card Deck



SHON	Simulate HONeywell CPU [permanent no-op]



SHR	SHift Random



SHRC	SHRed Card



SHRT	SHRed Tape



SID	Switch to Infinite Density



SIP	Store Indefinite Precision



SJV	Scramble Jump Vectors



SLP	Sharpen Light Pen



SMC	Scramble Memory Contents



SMD	Spontaneous Memory Dump



SMR	Skip on Meaningless Result



SMS	Shred Mylar Surface



SNARF	System Normalize And Reset Flags



SNM	Show No Mercy



SNO	Send Nukes on Overflow



SOAWP	SOlve All the World'd Problems



SOB	Stew On Brew



SOD	Surrender Or Die



SOL	Shift On Low



SOP	Stop and Order Pizza



SOS	Sign Off, Stupid



SOT	Sit On a Tack



SP	Scatter Print



SPA	Sliding Point Arithmetic



SPB	Simulate Peanut Butter



SPD	SPin Disk



SPS	Set Panel Switches



SPSW	Scramble Program Status Word



SQPWYC	Sit Quietly and Play With Your Crayons



SRBO	Set Random Bits to Ones



SRBZ	Set Random Bits to Zeroes



SRC	Select Random Channel



SRC	Select Reader and Chew cards



SRCC	Select Reader and Chew Cards



SRD	Switch to Random Density



SRDR	Shift Right Double Ridiculous



SRO	Sort with Random Ordering



SROS	Store in Read-Only Storage



SRR	Shift Registers Random



SRSD	Seek Record and Scar Disk



SRSD	Seek Record and Scratch Disk



SRTC	Stop Real-Time Clock



SRU	Signoff Random User



SRZ	Subtract and Reset to Zero



SSB	Scramble Status Byte



SSD	Scratch System Disk



SSD	Stacker Select Disk



SSD	Stop and Scratch Disk [3815]



SSJ	Select Stacker and Jam



SSJP	Select Stacker and JumP



SSM	Solve by Supernatural Means



SSM	Stacker Select Memory



SSP	Seek SPindle



SSP	Smoke and SPark



SST	Seek and Stretch Tape



SSW	Scramble Status Word



ST	Set and Test



STA	STore Anywhere



STC	Slow To a Crawl



STD	Stop, Take Drugs



STM	STretch Magtape



STM	Skip on Third Monday



STO	Strangle Tape Operator



STPR	SToP Rain



STRIKE	STRIKE for more pay, better hours, etc.



STROM	STore in Read-Only Memory



STTHB	Set Terminal to Three Hundred Baud



SUIQ	Subtract User's IQ



SUME	SUprise ME



SUP	Shred User Printout



SUP	Solve Unsolvable Problem



SUS	Stop Until Spring



SUS	Subtract Until Senseless



SWAT	SWAp Terminals



SWN	SWap Nibbles



SWOS	Store in Write-Only Storage



SWS	Sort to Wrong Slots



SWT	Select Wrong Terminal



SWU	Select Wrong Unit



SWZN	Skip Whether Zero or Not



SZD	Switch to Zero Density



TAH	Take A Hike



TAI	Trap Absurd Inputs



TARC	Take Arithmetic Review Course



TBFTG	Two Burgers and Fries To Go



TC	Transmit Colors



TDB	Transfer and Drop Bits



TDRB	Test and Destroy Random Bits



TDS	Trash Data Segment



TET	Triple Execution Time [SUN]



TLNF	Teach me a Lesson i'll Never Forget



TLO	Turn indicator Lights Off



TLW	Transfer and Lose Way



TN	Take a Nap



TOAC	Turn Off Air Conditioner



TOG	Take Out Garbage



TOG	Time Out, Graduate



TOH	Take Operator Hostage



TOO	Turn On/off Operator



TOP	Trap OPerator



TOS	Trash Operating System



TOW	Take Over World



TPD	Terminal Printer Destruct



TPD	Total Program Diagnostic



TPD	Triple Pack Decimal



TPDH	Tell Programmer to Do it Himself



TPF	Turn Power oFf



TPN	Turn Power oN



TPO	Turn Power Off



TPR	Tear PapeR



TR	Turn into Rubbish



TRA	Te Rdls Arvs [type ridiculous abbreviations]



TRD	TRansfer and Drop bit



TSH	Trap Secretary and Halt



TSM	Trap Secretary and Mount



TST	Trash System Tracks



TT%CN	TeleType \(em Clunk Noise



TT%EKB	TeleType \(em Electrify KeyBoard



TTA	Try, Try Again



TTIHLIC	Try To Imagine How Little I Care



TTITT	Turn 2400 foot Tape Into Two 1200 foot Tapes



TTL	Tap Trunk Line



TTL	Time To Logoff



TYF	Trust Your Feelings



UA	Unload Accumulator



UAI	Use Alternate Instruction set



UAPA(AM)	Use All Power Available (And More)



UCB	Uncouple CPU and Branch



UCIP	Update Card In Place



UCK	Unlock Console Keyswitch



UCLB	Uncouple Comm Lines and Branch



UCM	Uncouple CoMm lines and branch



UCPUB	Uncouple CPUs and Branch



UDR	Update and Delete Record



UER	Update and Erase Record



UFO	Unidentified Flag Operation



ULDA	UnLoaD Accumulator



UMR	Unlock Machine Room



UNPD	UNPlug and Dump



UOP	Useless OPeration



UP	Understand Program[mer]



UPA	Use all Power Available



UPC	Understand Program[mer]'s Comments



UPI	Undo Previous Instruction



URB	Update, Resume and Branch



UTF	Unwind Tape onto Floor



UTF	Use The Force



UUBR	Use Undefined Base Register



VAX	Violate All eXecutions



VFE	Violate Field Engineer



VFO	Violate Female Operator



VMA	Violate Maintenance Agreement



VNO	Violate Noise Ordinance



VPA	Vanishing Point Arithmetic



VVM	Vaporize Virtual Memory



WAD	Walk Away in Disgust



WAT	WAste Time



WBB	Write to the Bit Bucket



WBT	Water Binary Tree



WC	Waste Core



WCR	Write to Card Reader



WDR	Warp disk DRive



WED	Write and Erase Data



WEMG	Write Eighteen Minute Gap



WF	Wait Forever



WGPB	Write Garbage in Process-control Block



WHFO	Wait until Hell Freezes Over



WHP	Wave Hands over Program



WI	Why Immediate



WI	Write Illegibly



WID	Write Invalid Data



WMC	Write Millions of Comments



WNAM	We Need A Miracle



WNHR	Write New Hit Record



WNR	Write Noise Record



WP	Write Poop



WPET	Write Past End of Tape



WPM	Write Programmer's Mind



WSE	Write Stack Everywhere



WSWW	Work in Strange and Wondrous Ways



WUPO	Wad Up Printer Output



WWLR	Write Wrong Length Record



WWR	Write Wrong Record



XXIO	eXecute Invalid Opcode



XXKF	eXecute Kermit the Frog



XXM	eXclusive Maybe



XXMB	eXclusive MayBe



XXOH	eXecute no-Op and Hang



XXOR	eXecute OpeRator



XXOS	eXchange Operator's Sex



XXPR	eXecute PRogrammer



XXPSW	eXecute Program Status Word



XXSP	eXecute Systems Programmer



XXVF	eXchange Virtue for Fun



YAB	Yet Another Bug



YASE	Yet Another Stupid Error



ZAP	Zero and Add Packed



ZAR	Zero Any Register



ZD	Zap Directory



ZEOW	Zero Every Other Word



ZPI	ZaP Immediate