When one takes a poop. And doesn't wipe well enough. And when they sweat in their butt crack. It creates mud in there butt.
by acerz2able February 26, 2016
a guy going around just licking a dirty ass and making it clean the going to do it agian to another person that makes them a muddy butt skipper
by ckkiller22 February 18, 2011
This is a shameful act that only happens in desperation when you are home alone and have completely run out of toilet paper. With your pants around your ankles, squat walking, and your hands spreading the butt cheeks so you don't smear shit everywhere, you walk this way to your roommates bathroom to finish the job.
by Sir Greggles March 30, 2017
The humid poopy butt stank aroma forced through a fat girls ass crack when she sits down to fast and causes a pungent wind drift that smells of a sweaty, poopy and dirty pubic hair stench that gives males a hard on because it reminds them of butt fucking a fat girl on a hot and humid summer night
Tanya's muddy butt stank filled my nostrils like rotten cake batter that made me throw up in my mouth a little bit right after I tounge punched her fart box that resembled a boiling mud hole that I saw at Yellowstone national park while on vacation this summer.
by Fart box tounge puncher August 4, 2017