Definitions by Superdean

R.A.B

A Random-Ass-Boner. For instance, when you are just sitting down minding your own business and suddenly you get a boner.

Mark: "Dude I was in French class today and I got an R.A.B!"
Steve: "Ahhhh I HATE IT when that happens!"

R.A.B by Superdean March 5, 2009