Something you say when someone is boasting/threatening you and is acting like a bastard. It can also be used as a joke. It's pretty rude, and is also a quote from Austin Powers, so you can follow it up with something really dumb to say and everyone will think you're REAL funny.
Dr Evil- You Ain't all that in a bag of potato chips!
President of USA- What??
Dr Evil- Don't go there girlfriend *click* Mm Hmm!
Scotty-Dumbass!
A phrase said by a douche bag to a weak soul after committing an act of douchebaggery to them. This is said in an attempt to point the blame to the victim rather than yourself.
Steven: Patrick...don't you think you've had enough to drink tonight?
Patrick: Don't be a douche bag!
Patrick: I'm hungry (Takes lunch money)
Steven: HEY! thats mine! My mommy gave me that!
Patrick: Don't be a douchebag!
The natural act of a man dipping his ball sack into either a woman's or defeated opponents mouth as if it were a Tea-bag.
Most often used in the gaming community as a victory move. After you kill an opponent you highly dislike it is not uncommon to stand over your enemies lifeless body and crouch up and down over and over in a T-bagging manner while the opponent watches from the kill cam his body being defiled. (Note: Although uncommon T-Bagging a player while in a laying position such as sniping can also be done and is extra funny for the kill cam review.) Note that T-Bagging can get you spawn killed or verbally assaulted over the microphone.
"The gamer finally killed his opponent after many spawn kills and took his revenge by T-bagging the body of his downed opponent."
"Did you see that asshole? He just T-Bagged my body! Everyone spawn kill him!"