Explosive, extremely liquidy diarhrea often coupled with intense stomach pain, splash back, and more. Frequently tricks you into thinking your done and just as you zip your pants, the urge returns. Abbreviated RBP.
Tony: Man, you were in there for a while. I thought I heard you flush?
Hank: Ruckus butt pee man. It'll get ya.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi