Mudcap is the act of placing your mouth over an anus to block the flow of explosive diarrhea caused by a night of hard anal sex.
Everytime Willie Mudcaps Frank the stock price of Listerine triples in value.
by Sir Captain Happy Pants March 27, 2015
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Hard anal sex that results in an eruption or diarrhea that is held back by blocking the anus with your mouth.
Willie and Frank spent all night mudcapping, don't share a water bottle with either of them.
by Sir Captain Happy Pants July 2, 2014
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