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.
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!
a yo, them tacos and grape juice gave me mud butt at school.