the visible result of a failure to cleanse one's anus after dropping a deuce or as the result of a shart; most notably on the undergarments, if applicable.
Don't play a game of poop or fart, because you might end up with a muddy driveway.
by oncoming wedgie October 30, 2014
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Anal sex without adequate lube, causing withdrawal angst.
I got stuck in a muddy driveway.

Similar to muddy dirt road but with problems.

Not to be confused with trying to flee a threesome in a Porsche.
by R. Lot April 11, 2010
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