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.
by bobbydone November 24, 2006
Get the buttpiss mug.when stools exit the body in a highly liquified, and often projectile, state. AKA Diarhea...coined by BirminghamStang of a popular V6 Mustang site
I at a big burrito and the buttpiss was horrendus....
by Chris Strickland November 24, 2006
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