Wuu2 - What you up to
Wbu - What about you
Hbu - How about you
Bff - Best friend forever
Lol - Laugh out loud
Wtf - What the f*ck
Lmao - Laughing my @rse/@ss off
Lmfao - Laughing my f*cking @rse/ass off
Btw - By the way
Brb - Be right back
Ttyl - Talk to you later
U - You... LOL.
Gtg - Got to go
STFU - Shut the f*ck up
Idk - I don't know
Idc - I don't care
Idek - I don't even know
Omg - Oh my God
Omfg - Oh my f*cking God
Thx - Thanks
u2 - You too
Oic - Oh, I see
Tgif - Thank God it's Friday
Pls/Plz - Please
Nuff - Enough said
Pov - Point of view
Qt - Cutie
Rofl - Rolling on floor laughing
Pm - Personal message
M8 - Mate
Tvm - Thanks very much
Tmi - Too much information
Wth - What the hell
And my favourite one of all....
BYOB - BRING YOUR OWN BEER.
I don't understand the appeal lol hope this helps.