Said when a conversation has drifted beyond the original topic or comprehension all together.
Friend1: "I enjoyed the movie, it had cool effects and stuff"

Friend2: "Dude, please teach me how to play popcorn on the keyboard"

Friend1: "Dude wtf, I'm talkin bout t-rex here"
by ZT November 11, 2005
Get the talkin bout t-rex mug.
When someone is buggin out and you don’t know wtf they talkin bout
T Dog: Ayo lemme get some chips yo

CBANDZZ: IM EATING THESE SHITS U GOT BREAD GO BUY SOME TF IS U TALKIN BOUT

T DOG: Cmon homie u being L mans rn

CBANDZZ: ight bro

T dog: thnx twin

CBANDZZ: SIKE I LIED, THESE CHIPS IS MINE
Get the TF IS U TALKIN BOUT mug.
Famous quote from 80's tv sitcom "Different Strokes"

Used in normal conversation when speak doesn't understand.
"what you talkin bout willis?" -- translates to: "I did not understand"
by Butifuco November 17, 2003
Get the what you talkin bout willis? mug.
An expression to show that you like something.

This is the slightly more slang version of that's what i'm talking about.

Also see the acronym for this term:DWITB.
(After taking your first swig of beer after a long day at work)
Oh man, dats what I'm talkin' 'bout!
by AppleJax December 10, 2004
Get the Dats What I'm Talkin' 'Bout mug.
Implying that someone else is crazy when they're merely pointing out your foolishness.
Willis: Don't you think you'd better put the lid on that blender full of gunk before you plug it in?

Lil' Fool: What you talkin bout willis? (as he plugs in the blender)
by Liv Pooleside January 28, 2006
Get the what you talkin bout willis? mug.