When someone doesn’t wipe good enough and they have brown stains in thier underwear.
Ew bro you have mud butt!”
by Lvuitton July 28, 2017
Get the Mud butt mug.
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 22, 2004
Get the mud butt mug.
a serious case of the shits! also referred to as "wet tail"
guy: Hey, you coming out tonight?
other guy: Nah man. I had some taco smell last night and now I've got Mud butt!
by Bluvelvet72 July 27, 2018
Get the mud butt mug.
The mixture of semen and fecal matter inside the anus
I busted all up inside of Rebeccas ass. Pulled my dick out and had mud butt all over it! Unforgivable.
by Robotcitizen February 25, 2015
Get the Mud butt mug.
Mud butt is just another term for "Diarrea".
You chugged a bottle of soy sauce?

-Yeah.
Your going to have a serious case of mud butt, very soon.
by Nicsta July 31, 2009
Get the mud butt mug.
Mud butt is when your stomach hurts real bad, its the only time you will ever consider killing yourself,(if your not crazy) and its when u got mad diarhia, and that poop be poorin out, and ur stomach hurt so bad you be layin on the ground naked bangin on da floor, and when it splurt out, u can feel it come back up and get yo but on the rebound.
Last night dogg, that chicken and waffles had me thinkin bout killin myself, i hope i neva get mud butt again
by Dmacleb June 12, 2007
Get the Mud butt mug.
A term used to describe when poop uncontrollably comes out of your booty hole after anal intercourse.
Becky had a bad case of mud butt after Johnny hit it from the back
by Jenny Hillbean November 1, 2007
Get the mud butt mug.