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
po chris tibbs Август 21, 2004
shit on your cheeks. diarrea oh you butt
mud butt from chappeles show
po name34 Август 3, 2006
shit that is mushy or runny, started on the dave chappelle show
i had mudbutt last night and it sucked
po shaun Јануар 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
po negro Октобар 16, 2004
Also known as a Shart
Dude, we have to leave this party, I sharted.
po Bill Март 28, 2005