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
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
