ass mustard 

The brownish-yellow discharge found in one's undergarment after an evening of junk food and/or bad beer. It can be delivered by flatulence, or a steady leak.

Boy howdy! your drawers are loaded with ass mustard!!!

ass mustard by biggdogg September 4, 2003

Hot Yellow Ass Mustard 

Hot Yellow Ass Mustard: the result of anally straining oneself beyond one's limits then exposing that matter to a heated element.

After we ate the bean burrito we had a farting contest in which Matt pushed too hard and sprayed ass mustard all over the space heater causing it to become hot yellow ass mustard.

Hot Yellow Ass Mustard by Frankendouche September 11, 2005

Mustard Ass 

Someone whose ass emits an odor strong enough to create casualties reminiscent of WWI's Mustard Gas.

Mike 'Mustard Ass' Dukes, has a weapon of extraordinary proportions in his arsenal.

Mustard Ass by Krazy Kraka February 24, 2004

musturd ass 

When someone shits their pants and doesn't change them. It sits and stirs and gets into all of the crevices of the pelvic area, creating a sticky, moist, and lethal substance that could be nuclearized.

WW1 was fought with guns. WW2 was fought with mustard gas. WW3 will be fought with musturd ass.

musturd ass by disbugboisnutz96 November 26, 2015

assmustard 

1. Produced after anal sex, the substance which seeps from the anus (mostly semen and fecal matter combined) which is commonly used as a condiment.

2. The substance produced when a person used any condiment as an anal lubricant.

After a long night of fucking, Lauren wiped the assmustard off the bed sheets.

assmustard by Dirty Rodriguez, and Seymour Johnson January 14, 2007