The smell of beach restrooms and out door elevators.... It smells like bum piss--- bumpiss.

DAAAAAAAAAAAANG!! this place smells like bumpiss!

by Alex and Aidan September 02, 2007

3 6

Words related to bum piss:

when you have a shit and it is basically water coming out of your ass

'john did a hell of a bum piss'

by Mark9288 January 23, 2007

14 8

bum piss is when you have had an illness or it can happen when you take to many drugs.

your guts empty them selves like passing water through your bottom = bum piss

by peter mills August 24, 2006

8 5

The event of an extremley runny shit, usually caused by recent diets.

I ate a whole box of bran flakes and Iv'e been bumpissin' for hours!

by o0 I3LACKOUT Oo August 03, 2008

3 2

The act of sending BUM URINE to someone via the mail

"damm dude you send you boss BUMPISS!" he is an asshole

by chubbyshawn November 16, 2007

0 4