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1.
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

Words related to bum piss:

bum diarrhia got the shits piss poo shit shits squits stools water
 
2.
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
 
3.
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
 
4.
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
 
5.
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