The act of rubbing your penis between a person's butt checks bumping against their anus while never actually penetrating it and finishing by ejaculating onto their butthole.
by Tonto Rodriguez January 27, 2016

When you have a case of sickness and everything you have taken in or are taking in via mouth, evacuates itself out your ass in a watery, muddy consistncey for a lengthy period of time.
'After eating that seafood I had a serious case of the Viral mud butt diet!'
Or
'I knew the flu was going around, and it hit me hard with a case of the Viral mud butt diet.'
Or
'I knew the flu was going around, and it hit me hard with a case of the Viral mud butt diet.'
by nurse hotpants March 27, 2012

A cocktail of bourbon, coke, and baileys Irish cream. Served over ice. It curdles when mixed, but tastes of rootbeer.
by Effingeffer May 23, 2018

Friend #1: I was have amazing anal sex with that filthy little filly Stacy and I pulled it out and put it deep in her bum, straight mud-flappin' bro.
Friend #2: Amazing, pure class.
Friend #2: Amazing, pure class.
by Timothy0Peden September 16, 2021

by Munt maxer February 12, 2024

when at a restaurant with a group of friends, you have to pay the entire bill for everyone that's part of your party
by Sexydimma April 28, 2015

When you take a large shit and have to use like half a roll of toilet paper because your shit is like sticky tar. Shit smears instead of wiping off. When you wipe it gets messier before it gets clean.
by Michele_plus_one August 5, 2016
