Sharty Mustard Butt

When somebody sharts in their underwear and wallows around in it for a long period of time. The color and texture resembles a mustard like substance.

Brian is a sharty mustard butt.

by KrissyNJbo June 19, 2010

mustard butt

The aftermath of hot snakes from a week full of taco bell and indian food often resulting in bleeding rectum and or severe uunimaginable loss of all hope for a normal life

Dude shoot me I have a bloody rash from this mustard butt I've had for three years.

by notsoslimpeople March 29, 2015