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
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
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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