to urinate....plain and simple.
"dude, where's your bathroom? I have to Leak Out"
by bk808 November 21, 2006
To slip out of a party or social situation unnoticed in order to avoid the shame and humiliation of leaving early. (see leaker)
Hey, where did Mike go. He was just here a minute ago. Did he leak out and go home again? What a pussy!
by Rick V August 03, 2007