| AAC | Alter All Commands |
| AAD | Alter All Data |
| AAR | Alter At Random |
| AB | Add Backwards |
| ABR | Add Beyond Range |
| ACQT | Advance Clock to Quitting Time |
| ADB | Another Damn Bug |
| AFF | Add Fudge Factor |
| AFHB | Align Fullword on Halfword Boundary |
| AGB | Add GarBage |
| AI | Add Improperly |
| AIB | Attack Innocent Bystander |
| AMI | Adjust Memory for Inflation |
| AOI | Annoy Operator Immediate |
| AR | Alter Reality |
| ARN | Add and Reset to Non-zero |
| AS | Add Sideways |
| AWP | Argue With Programmer |
| AWTT | Assemble With Tinker Toys |
| BAC | Branch to Alpha Centurai |
| BAF | Blow All Fuses |
| BAH | Branch And Hang |
| BAM | Branch After Midnight |
| BB | Branch on Bug |
| BBI | Branch on Burned-out Indicator |
| BCF | Branch and Catch Fire |
| BCIL | Branch Creating Infinite Loop |
| BCR | Backspace Card Reader |
| BCU | Be Cruel and Unusual |
| BDC | Break Down and Cry |
| BDM | Branch and Disconnect Memory |
| BDT | Burn Data Tree (follows Decorate Data Tree) |
| BE | Branch Eventually |
| Branch Everywhere |
| BF | Belch Fire |
| BLP | Boot from Line Printer |
| BLM | Branch, Like, Maybe |
| BLMWM | Branch, Like, Maybe, Wow, Man |
| BLSC | Branch on Lapsed Service Contract |
| BM | Branch to Monday |
| BMP | Branch and Make Popcorn |
| BNA | Branch to Nonexistent Address |
| BNO | Branch on New Operator |
| BNR | Branch for No Reason |
| BPEOR | Bypass End Of Reel |
| BPIM | Bury Programmer In Manuals |
| BPP | Branch on Programmer Present |
| BRA | BRanch Anywhere |
| BRL | BRanch and Leak |
| BSM | Branch and Scramble Memory |
| BSST | Backspace and Stretch Tape |
| BT (BRT) | Branch on Tuesdays |
| BTK | Back To Kansas |
| BW | Branch on Whim |
| BWOP | BeWilder OPerator |
| CAAL | Compute Answer And Loop |
| CAB | Crash And Burn |
| CAG | Convert ASCII to Greek |
| CAIL | Crash After I Leave |
| CAT | Confused And Tired |
| CBA | Compare and Branch Anyway |
| CBNC | Close, But No Cigar |
| CC | Call Cavalry |
| CCD | Clear Core and Dump |
| CEE | Cause Errors Elsewhere |
| CF | Come From |
| CH | Create Havoc |
| CIB | Change Important Byte |
| CIMM | Create Imaginary Memory Map |
| CL | Call Lawyer |
| CMD | Compare Meaningless Data |
| CMI | Clobber Monitor Immediate |
| CML | Compute Meaning of Life |
| CNB | Cause Nervous Breakdown |
| COLB | Crash for Operator's Lunch Break |
| COS | Copy Object code to Source file |
| COWHU | Come Out With Hands Up |
| CPB | Create Program Bug |
| CPR | Compliment PRogrammer (like, "aren't you cute") |
| CRASH | Continue Running After Stop or Halt |
| CRM | Clear Random Memory |
| CRN | Convert to Roman Numerals |
| CS | Crash System |
| CSL | Curse and Swear Loudly |
| CSN | Call Supervisor Names |
| CVFL | ConVert Floating to Logical |
| CVFP | ConVert Fortran to Pascal |
| DA | Develop Amnesia |
| DAP | De-select Active Peripheral |
| DBL | Desegregate Bus Lines |
| DBZ | Divide By Zero |
| DC | Degauss Core |
| DCGC | Dump Confusing Garbage to Console |
| DD | Destroy Disk |
| DDC | Dally During Calculations |
| DDWB | Deposit Directly in Wastepaper Basket |
| DEC | Decompile Executable Code |
| DIE | DIsable Everything |
| DIRFO | Do It Right For Once |
| DK | Destroy Klingons |
| DKP | Disavow Knowledge of Programmer |
| DLN | Don't Look Now |
| DMAG | Do MAGic (the only command a programmer really needs) |
| DMPE | Decide to Major in Phys Ed |
| DPC | Decrement Program Counter |
| DPMI | Declare Programmer Mentally Incompetent |
| DSI | Do Something Interesting |
| DSTD | Do Something Totally Different |
| DSUITv | Do Something Utterly, Indescribably, Terrible |
| DTC | Destroy This Command |
| DTI | Do The Impossible |
| DTVFL | Decrement Third Variable From Left |
| DWIM | Do What I Mean |
| EBB | Empty Bit Bucket |
| EBRS | Emit Burnt Resistor Smell |
| ECO | Electrocute Computer Operator |
| ECP | Erase Card Punch |
| EDD | Eat Disk and Die |
| EDIT | Erase Data and Increment Time |
| EEP | Erase Entire Program |
| EIAO | Execute In Any Order |
| EIOP | Execute Invalid OPcode |
| ENA | Enable Anything |
| ENF | Emit Noxious Fumes |
| EOB | Execute Operator and Branch |
| ERM | Erase Reserved Memory |
| EROM | Erase Read Only Memory |
| ESL | Exceed Speed of Light |
| ESS | Enable Sprinkler System |
| EXX | (a real instruction on the Zilog Z-80) (Zilog is owned by Exxon) |
| FB | Find Bugs |
| FD | Forget Data |
| FLD | FLing Disk |
| FLI | Flash Lights Impressively |
| FM | Forget Memory |
| FRG | Fill with Random Garbage |
| FSM | Fold, Spindle, and Mutilate |
| GBC | Go to the Back of the Class |
| GCAR | Get Correct Answer Regardless |
| GDP | Grin Defiantly at Programmer |
| GIE | Generate Irreversible Error |
| GND | Guess the Next Digit |
| GORS | GO Real Slow |
| GPS | Give Programmer the Shaft |
| GREP | Global Ruin, Expiration and Purgation |
| HAH | Halt And Hang |
| HCRS | Hang in CRitical Section |
| HELP | type "no HELP available" |
| HF | Hide a File |
| HOO | Hide Operator's Output |
| IBR | Insert Bugs at Random |
| IDI | Invoke Divine Intervention |
| ILI | Ignore Last Instruction |
| IP | Increment and Pray |
| IPW | Invert Print Wheel |
| ISC | Insert Sarcastic Comment |
| ISP | Increment and Skip on Pi |
| IU | Ignore User |
| JAA | Jump Almost Always |
| JFI | Jump to Following Instruction |
| JFM | Jump on Full Moon |
| JLP | Jump and Lose Pointer |
| JNL | Jump when programmer Not Looking |
| KP | Krunch Paper |
| KUD | Kill User's Data |
| LB | Look Busy |
| LOSM | Log Off System Manager |
| LPA | Lead Programmer Astray |
| LSPB | Left Shift Parity Bits |
| MAN | Make Animal Noises |
| MAZ | Multiply Answer by Zero |
| MBTD | Mount Beatles on Tape Drive |
| MBTOL | Move Bugs To Operator's Lunch |
| MDB | Move and Drop Bits |
| MDDHAF | Make Disk Drive Hop Across Floor |
| MLP | Make Lousy Program |
| MMLG | Make Me Look Good |
| MNI | Misread Next Instruction |
| MRZ | Make Random Zap |
| MWT | Malfunction Without Telling |
| OML | Obey Murphy's Law |
| PBC | Print and Break Chain |
| PBM | Pop Bubble Memory |
| PEHC | Punch Extra Holes in Card |
| PIBM | Pretend to be an IBM |
| POW | Print Obscene Words |
| PUL | Print in Unknown Language |
| RA | Randomize Answers |
| RAU | Ridicule All Users |
| RBAO | Ring Bell and Annoy Operator |
| RBEOR | Read Beyond End Of Reel |
| RCB | Read Commands Backward |
| RCR | Rewind Card Reader |
| RDA | Refuse to Disclose Answer |
| RDCH | Read Disk and Crash Head |
| RDI | Reverse Disk Immediate |
| RENVR | REName Variables Randomly |
| RF | Read Fingerprints |
| RHP | Read Hub Protector |
| RLI | Rotate Left Indefinitely |
| RLP | Refill Light Pen |
| RPB | Read, Print and Blush |
| RTP | Reduce ThroughPut |
| SAI | Skip All Instructions |
| SAS | Sit And Spin |
| SDD | Seek out and Destroy Data |
| SDE | Solve Differential Equations |
| SFH | Set Flags to Half-mast |
| SFT | Stall For Time |
| SOS | Sign Off, Stupid |
| SPS | Smoke Power Supply |
| SRO | Sort with Random Ordering |
| SSJ | Select Stacker and Jam |
| STO | Strangle Tape Operator |
| STPR | SToP Rain |
| SUI | Subtract User's IQ |
| SUP | Solve Unsolvable Problem |
| SUR | Screw Up Royally |
| SUS | Stop Until Spring |
| SWT | Select Wrong Terminal |
| TARC | Take Arithmetic Review Course |
| TBGTG | Two BurGers and fries To Go |
| TC | Transmit Colors |
| TCAR | Transmit Colors, but Avoid Red |
| TLO | Turn indicator Lights Off |
| TLW | Transfer and Lose Way |
| TN | Take a Nap |
| TPDH | Tell Programmer to Do it Him/Her self |
| TRA | Te Rdls Arvs (Type Ridiculous Abbreviation) |
| TT%EKB | TeleType - Electrify Keyboard |
| TTA | Try, Try Again |
| TTL | Tap Trunk Line |
| UAI | Use Alternate Instruction set |
| UCB | Uncouple Comm lines and Break |
| UEP | Update and Erase Program |
| UP | Understand Program |
| VAX | Violate All eXecutions |
| VFO | Violate Female Operator |
| VMA | Violate Maintenance Agreement |
| VNO | Violate Noise Ordinance |
| VVM | Vaporize Virtual Memory |
| VW | Void Warranty |
| WAD | Walk Away in Disgust |
| WBF | Write Bad File |
| WDI | Write Data and Ignore |
| WHP | Wave Hands over Problem |
| WQWH | Write Quietly With Hangover |
| WSWW | Work in Strange and Wondrous Ways |
| XKF | eXecute Kermit the Frog |
| XMB | eXclusive MayBe |
| XOS | eXchange Operator's Sex |
| YKWIM | You Know What I Mean |
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