Let's start off simple
B.R.B=Be Right Back
G.2.G/G.T.G=Got to Go
L.O.L=Laugh Out Loud
O.M.G=Oh my Gosh
W.T.F=What the F**k
Now lets get a little more advanced
L.M.A.O=Laughing my Ass Off
R.O.F.L=Rolling on the Floor Laughing
R.O.F.L.O.L/L.M.A.O=Rolling on the Floor Laughing Out Loud/Laughing my Ass Off
G.T.F.O=Get the F**k Out
Ven's Text talk
B.A.H=Bored as Hell
C.A.H=Confused as Hell
Y.C.G.D=You can Go Die
O.K If you have anymore that you made up or I forgot just post them in the comments below and remember use text talk as little as possible Thank You.