1. A term given to the anus after gay sex, the butt becomes "used".

2. (_O_) the symbol for used butt in "computer language".
1.Edwardo: Hello I am gay.
Joe: Ew, you must have used butt.

2. The following is an example IM conversation:
Carlito456: Hey whats up?
Dudeman213: Shut up fag, you have used butt (_O_)
Carlito456: :(
by GBob March 10, 2008
Get the Used Butt mug.