The feeling of moist, itchy, clay-like fecal matter which remains in your anal cavity after sub-par wiping is the result of one having an extremely messy bowel movement and spending four to six hours perfroming physical activity in moderate to extreme heat. The aforementioned condition may or may not result in the dragging of ones bare anus on a coarse surface such as a carpet or snadpaper.
Jesus Christ, I took a massive shit before helping you move and spent my day scratching my mud butt.
by Joe mosler September 23, 2009
The sensation of having a greasy and unwipeable ass usually occuring after consumption of large quantities of fried or fatty foods. A result of oily anal discharge, leakage, or extremely tacky fecal matter. Often accompanied by, or preceded by, 'The Itis.'
I ate two plates of ribs and a half pound of fudge last night. I keep wiping my ass today but I just can't shake this Mud Butt.
by thehairlessgorilla March 19, 2009
mud butt is when you eat sumthing that dont agree wtih you. then maybe an hour later u get cramps in ur ribs and u start to fart every 2 minutes. then ur stomach hurts and every fart is wet and hot, and sonner or later it isnt safe 2 fart, u need to shit. the moment u pop a squat on the throne, ur butthole opens up and it runs right out....and the smell is horrible!
by makaveli tha don January 19, 2008
Explosive diarrhea from "Chappelle's Show." First on the skit, "First black man to use white toilet"
"I had gone out to buy a roast beef sandwich from a boy who used to sell them up front. A little bit later, I could feel a bubblin'. Little did I know, that roast beef sandwich would change my life."
by Jake March 24, 2005