Full phrase: "What crawled up your ass and died?" It is said after somebody farts and the smell is so horrible that everyone in the room runs out gagging. The implication is that the fart smells as bad as, for example, a rotting dead skunk or maggoty rat.
by lyndal June 01, 2007
Alice: Oh wow! Did you hear that cardinal?
Jack: Yeah, annoying little prick.
Alice: What crawled up your ass and died?
Jack: Yeah, annoying little prick.
Alice: What crawled up your ass and died?
by OrvilleFan December 18, 2019
Term used to describe an unusually bad smelling fart. The implecation is that the fart smells like a rotting animal combined with shit.
by Waycoolrich August 08, 2007