Top Definition
After having way too much anal sex, the tissue between the inside of the intestines and vagina wears away. This causes interesting problems when a female urinates.

Also, may be used to describe horrible diarrhea that is 100% liquid.
That nasty anal porn star will piss a shit everytime she tries to pee.
by redyouch April 26, 2006
6 Words related to piss a shit

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