adjective; the overall sloppy condition of a persons anal cavity...resulting from excessive flatulance and poor wiping skills.
when we ran out of TP, i suffered from mod butt
by chris tibbs August 21, 2004

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shit on your cheeks. diarrea oh you butt
mud butt from chappeles show
by name34 August 03, 2006

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shit that is mushy or runny, started on the dave chappelle show
i had mudbutt last night and it sucked
by shaun January 30, 2005

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its when you got the shits from drinking miller or bud all night
man i got mudbutt and is starting to really get raw
by negro October 16, 2004

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Also known as a Shart
Dude, we have to leave this party, I sharted.
by Bill March 28, 2005

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