AFAIK       As far as I know.

  AFK         Away from keyboard.

  A/S/L       Age, sex, location.

  ATM         At the moment.

  AWGTHTGTTA  Are we going to have to go through this again.

  AYT         Are you there.

  BBL         Be back later.

  BFF         Best friend forever.

  BFN         Bye for now.

  BRB         Be right back.

  BTDT        Been there, done that.

  BTW         By the way.

  CUL         See you later.

  DETI        Don't even think it.

  DQMOT       Don't quote me on this.

  EBCAK       Error between chair and keyboard.

  EBKAC       Error between keyboard and chair.

  F2F         Face to face.

  FOAF        Friend of a friend.

  FWIW        For what it's worth.

  FYI         For your information.

  GAL         Get a life.

  GD&R        Grinning, ducking and running.

  GMTA        Great minds think alike.

  HB          Hurry back.

  HHOK        Ha, ha, only kidding.

  IANAL       I am not a laywer, but...

  IAW         In accordance with.

  IMCO        In my considered opinion.

  IMHO        In my humble opinion.

  IMO         In my opinion.

  IOW         In other words.

  JK          Just kidding.

  JOOTT       Just one of those things.

  KK          Okay, all right.

  KPC         Keeping parents clueless.

  LMAO        Laughing my ass off.

  LOL         Lots of luck.

  LMIRL       Let's meet in real life.

  LYLAS       Love ya like a sister.

  MYOB        Mind your own business.

  MWA         A kiss (the sound of "mwa.")

  N2M         Not too much.

  NALOPKT     Not a lot of people know this.

  NIH         Not invented here.

  OIC         Oh, I see.

  OMG         Oh my God!

  OTOH        On the other hand.

  OTP         On the phone.

  PAL         Parents are listening.

  PEBCAK      Problem exists between chair and keyboard.

  PEBKAC      Problem exists between keyboard and chair.

  PIR         Parents in room.

  PITA        Pain in the ass.

  PLBCAK      Problem lies between chair and keyboard.

  PLBKAC      Problem lies between keyboard and chair.

  PMJI        Pardon my jumping in.

  POS         Parent over shoulder.

  PRW         Parents are watching.

  PTG&LI      Playing the game and loving it.

  RL          Real life.

  ROFL        Rolling on the floor laughing.

  ROFLMAO     Rolling on the floor laughing my ass off.

  SIT         Stay in touch.

  STFU        Shut the f*** up!

  SUP         What's up?

  TANSTAAFL   There ain't no such thing as a free lunch.

  TIA         Thanks in advance.

  TMTH        Too much to handle.

  TTFN        Ta, ta for now (goodbye).

  TTT         Thought that too.

  TTYL        Talk to you later.

  TU          Thank you.

  TY          Thank you.

  WFM         Works for me.

  YT          You there?