| Abbreviation | Meaning |
| <3 | heart |
| 404 | I haven't a clue |
| A3 | Anyplace, anywhere, anytime |
| ADN | Any day now |
| AFAIK | As far as I know |
| AFK | Away from keyboard |
| ARE | Acronym-rich environment |
| ASAP | As soon as possible |
| A/S/L? | Age/sex/location? |
| B4N | Bye for now |
| BAK | Back at the keyboard |
| BAS | Big a** smile |
| BBIAB | Be back in a bit |
| BBL | Be back later |
| BBN | Bye bye now |
| BBS | Be back soon |
| BEG | Big evil grin |
| BF | Boy friend |
| BFD | Big f***ing deal |
| BFN | Bye for now |
| BG | Big grin |
| BIBO | Beer in, beer out |
| BIOYIOP | Blow it out your I/O port |
| BL | Belly laughing |
| BMGWL | Busting my gut with laughter |
| BOTEC | Back-of-the-envelope calculation |
| BRB | Be right back |
| BTA | But then again... |
| BTDT | Been there, done that |
| BTW | By the way |
| BWL | Bursting with laughter |
| BWTHDIK | But what the heck do I know...? |
| CICO | Coffee in, coffee out |
| C&G | Chuckle and grin |
| CNP | Continued in next post |
| CRB | Come right back |
| CRBT | Crying real big tears |
| CU | See you |
| CUL | See you later |
| CUL8ER | See you later |
| CYA | See ya |
| CYA | Cover your ass |
| CYO | See you online |
| DBA | Doing business as |
| DFLA | Disenhanced four-letter acronym (that is, a TLA) |
| DL | Dead link |
| DLTBBB | Don't let the bed bugs bite |
| DIKU | Do I know you? |
| DITYID | Did I tell you I'm distressed? |
| DOM | Dirty old man |
| DOS | Dozing off soon |
| DQMOT | Don't quote me on this |
| DTRT | Do the right thing |
| DWB | Don't write back |
| E2E | exchange to exchange |
| E2E | e-business to e-business |
| E2E | employee to employee |
| E2E | end to end |
| EG | Evil grin |
| EMFBI | Excuse me for butting in |
| EMSG | E-mail message |
| EOM | End of message |
| EOT | End of thread (meaning: end of discussion) |
| ESAD | Eat s**t and die |
| ETLA | Extended three-letter acronym (that is, an FLA) |
| EWG | evil wicked grin |
| F2F | Face to face |
| FAQ | Frequently-ask question(s) |
| FC | Fingers crossed |
| FISH | First in, still here |
| FLA | Four-letter acronym |
| FMTYEWTK | Far more than you ever wanted to know |
| FOMCL | Falling off my chair laughing |
| FTBOMH | From the bottom of my heart |
| FUBAR | F***ed up beyond all repair or recognition |
| FUD | Fear, Uncertainty, and Doubt |
| FWIW | For what it's worth |
| FYI | For your information |
| G | Grin |
| GA | Go ahead |
| GAL | Get a life |
| GIGO | Garbage in, garbage out |
| GD&R | Grinning, ducking, and running |
| GF | Girlfriend |
| GFN | Gone for now |
| GGP | Gotta go pee |
| GIWIST | Gee, I wish I'd said that |
| GL | Good luck |
| GMAB | Give me a break |
| GMTA | Great minds think alike |
| GOL | Giggling out loud |
| GTRM | Going to read mail |
| GTSY | Glad to see you |
| H&K | Hug and kiss |
| HAGN | Have a good night |
| HAND | Have a nice day |
| HHIS | Hanging head in shame |
| HIG | How's it going |
| HT | Hi there |
| HTH | Hope this helps |
| HUB | Head up butt |
| IAC | In any case |
| IAE | In any event |
| IANAL | I am not a lawyer (but) |
| IAW | I agree with or In accordance with |
| IC | I see |
| IGP | I gotta pee |
| IHA | I hate acronyms |
| IHU | I hear you |
| IIRC | If I recall/remember/recollect correctly |
| ILU or ILY | I love you |
| IM | Immediate message |
| IMCO | In my considered opinion |
| IMHO | In my humble opinion |
| IMing | Chatting with someone online usually while doing other things such as playing trivia or other interactive game |
| IMNSHO | In my not so humble opinion |
| IMO | In my opinion |
| IMS | I am sorry |
| IOW | In other words |
| IPN | I'm posting naked |
| IRL | In real life (that is, when not chatting) |
| ITA | I totally agree |
| ITIGBS | I think I'm going to be sick |
| IWALU | I will always love you |
| IYSWIM | If you see what I mean |
| J4G | Just for grins |
| JBOD | Just a bunch of disks (like redundant array of independent disks, etc.) |
| JIC | Just in case |
| JK or j/k | Just kidding |
| JMO | Just my opinion |
| JTLYK | Just to let you know |
| k | ok |
| KISS | Keep it simple stupid |
| KIT | Keep in touch |
| KOTC | Kiss on the cheek |
| KOTL | Kiss on the lips |
| KWIM? | Know what I mean? |
| L8R | Later |
| L8R G8R | Later gator |
| LD | Later, dude |
| LDR | Long-distance relationship |
| LHO | Laughing head off |
| LLTA | Lots and lots of thunderous applause |
| LMAFO | Laughing my f**king a** off |
| LMAO | Laughing my a** off |
| LMSO | Laughing my socks off |
| LOL | Laughing out loud |
| LRF | Little Rubber Feet (the little pads on the bottom of displays and other equipment) |
| LSHMBH | Laughing so hard my belly hurts |
| LTM | Laugh to myself |
| LTNS | Long time no see |
| LTR | Long-term relationship |
| LULAB | Love you like a brother |
| LULAS | Love you like a sister |
| LUWAMH | Love you with all my heart |
| LY | Love ya |
| LY4E | Love ya forever |
| MorF | Male or female |
| MOSS | Member of the same sex |
| MOTOS | Member of the opposite sex |
| MTF | More to follow |
| MUSM | Miss you so much |
| NADT | Not a darn thing |
| NFG | No f*****g good |
| NFW | No feasible way or no f*****g way |
| NIFOC | Naked in front of computer |
| NP or N/P | No problem |
| NRN | No response necessary |
| OIC | Oh, I see |
| OLL | Online love |
| OMG | Oh my God |
| OTF | Off the floor |
| OTOH | On the other hand |
| OTTOMH | Off the top of my head |
| PANS | Pretty awesome new stuff (as opposed to "POTS") |
| PAW | Parents are watching |
| PCMCIA | People can't master computer industry acronyms |
| PDA | Public display of affection |
| PEBCAK | Problem exists between chair and keyboard |
| PIBKAC | Problem is between keyboard and chair |
| PITA | Pain in the ass |
| PM | Private message |
| PMFJIB | Pardon me for jumping in but... |
| POAHF | Put on a happy face |
| ::POOF:: | Goodbye (leaving the room) |
| POTS | Plain old telephone service |
| PU | That stinks! |
| QT | Cutie |
| RL | Real life (that is, when not chatting) |
| ROR | Raffing out roud (Engrish for "laughing out loud") |
| ROTFL | Rolling on the floor laughing |
| ROTFLMAO | Rolling on the floor laughing my a** off |
| ROTFLMAOWPIMP | Rolling on the floor laughing my a** off while peeing in my pants |
| ROTFLMBO | Rolling on the floor laughing my butt off |
| RPG | Role-playing games |
| RSN | Real soon now |
| RT | Real time |
| RTFM | Read the f***ing manual |
| RYO | Roll your own (write your own program; derived from cigarettes rolled yourself with tobacco and paper) |
| S^ | S'up - what's up |
| S4L | Spam for life (what you may get when you become someone's customer or client) |
| SHCOON | Shoot hot coffee out of nose |
| SEG | S***-eating grin |
| SETE | Smiling ear to ear |
| SF | Surfer-friendly (low-graphics Web site) |
| SHID | Slaps head in disgust |
| SNAFU | Situation normal, all f***ed up |
| SO | Significant other |
| SOL | Smilling out loud or sh*t out of luck |
| SOMY | Sick of me yet? |
| SOT | Short on time |
| SOTMG | Short on time must go |
| STFU | Shut the f**k up |
| STFW | Search the f*****g Web |
| STW | Search the Web |
| SU | Shut up |
| SUAKM | Shut up and kiss me |
| SUP | What's up |
| SWAG | Stupid wild-a** guess |
| SWAK | Sealed with a kiss |
| SWL | Screaming with laughter |
| SYS | See you soon |
| TA | Thanks again |
| TAFN | That's all for now |
| TANSTAAFL | There ain't no such thing as a free lunch |
| TCOY | Take care of yourself |
| TFH | Thread from hell (a discussion that just won't die and is often irrelevant to the purpose of the forum or group) |
| TGIF | Thank God it's Friday |
| THX | Thanks |
| TIA | Thanks in advance (used if you post a question and are expecting a helpful reply) |
| TILII | Tell it like it is |
| TLA | Three-letter acronym |
| TLK2UL8R | Talk to you later |
| TB4U | Too bad for you |
| TMI | Too much information |
| TNT | Till next time |
| TOPCA | Til our paths cross again (early Celtic chat term) |
| TOY | Thinking of you |
| TPTB | The powers that be |
| TTFN | Ta-Ta for now |
| TTT | Thought that, too (when someone types in what you were about to type) |
| TTYL | Talk to you later |
| TU | Thank you |
| TY | Thank you |
| TYVM | Thank you very much |
| UAPITA | You're a pain in the ass |
| UAF | Until further notice |
| UW | You're welcome |
| VBG | Very big grin |
| VBSEG | Very big s***-eating grin |
| WAG | Wild a** guess |
| WAYD | What are you doing |
| WB | Welcome back |
| WBS | Write back soon |
| WDALYIC | Who died and left you in charge? |
| WEG | Wicked evil grin |
| WFM | Works for me |
| WIBNI | Wouldn't it be nice if |
| WT? | What/who the ? |
| WTF | What the F***! |
| WTFO | What the F***! Over! |
| WTG | Way to go! |
| WTGP? | Want to go private? |
| WU? | What's up? |
| WYSITWIRL | What you see is TOTALLY WORTHLESS IN REAL LIFE! |
| WUF? | Where are you from? |
| WYSIWYG | What you see is what you get |
| YBS | You'll be sorry |
| YGBSM | You gotta be s***tin' me! |
| YMMV | Your mileage may vary. |
| YW | You're welcome |
