look up any word, like sex:
pee bar (n.)

A magic bar that appears when your bladder is full. It is often in reference to video game fanatics. As your bladder empties, the pee bar animated, slowly retreats back to nothing.
Video game nerd (1): My pee bar is full.

Video game nerd (2): Better go empty it before it explodes.

Both snort and giggle.
by geckopaws February 13, 2012