Diarrhea, characterized by sudden and violent gastro-intestinal retching.
Can't go out tonight... Had Mexican for lunch and contracted a case of butt vomit.
by borracho February 15, 2005
Violent rectal discharge consisting of identifiable chunks of food other then peanuts and corn in a aqueous matrix. Often resulting in anal irritaion and soreness characterized by large amounts of back splash.
"The food at the galley gave me Butt Vomit so bad I couldn't walk."

"The food from Del Taco looks like Butt Vomit."

"Yo, your breath smells like Butt Vomit."
by Dr. Harold Buticougher November 13, 2006

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