The splooging of the rectal cavity with enormous force resulting in brown liquid; bodily waste disfunction
by Brett shithispants May 13, 2005

the true "definition" of mudbutt,(all the rest are other peoples versions) is: the condition of the anal region where ones crevice between the ass cheeks becomes hot and saucy due to sweat, buildup of underwear residue, and poor wiping abilities. It is almost certain to happen to anyone on a real hot summer day if they:
1)wear dirty and/or heavy clothes
2)do not shower
3)have recently deficated
4)have participated in exercise
1)wear dirty and/or heavy clothes
2)do not shower
3)have recently deficated
4)have participated in exercise
After walking through the city all day with a pair of jeans on, John developed a case of "mud-butt".
by Marc Micheline January 22, 2005

(muhdh - buht) n. med. (usu. pre. by 'the') Mud Butt is a common affliction of the anus and the glutteal crevice, affecting mainly (but not limited to) "heavies". The condition usually occurs 30 to 45 minutes after defecation, especially if sufferer engages in physical activity within this time. Sweat and some remaining feces (though one's wiping habits may be immactulate) mix in the glutteal crevice, causing mild discomfort and, if not treated, a raw ass.
by Pork King November 5, 2005

by Master of Girth April 4, 2003

by arfifteen May 20, 2010

by Bud E Love May 5, 2003
