Definitions by bobbydone

buttpiss 

Diarrhea, or liquid shit that comes out of your ass. Sometimes occurs when eating Mexican food, eggs, or drinking too much whole milk. Akin to shitting a lot of Yoo-Hoo.

Holy fuckin shit dude, your mom's egg casserole gave me some SERIOUS buttpiss!!

buttpiss by bobbydone November 24, 2006