by PM Mike July 19, 2006

by Jack February 26, 2005

by toast455 July 05, 2005

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

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

by ipfreely March 05, 2004

Simply put, diarhea, a horrible shit that you cant hold in any longer.Commonly used on the Chappelles Show.
by neverrusty October 23, 2006
