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It happens after you eat to much spicy food, and it causes you to fart in a burning matter as if someone shoved a blow torch in your ass.
Husband: Thank you hun, That was the best spicy enchiladas ever.

Wife: You're welcome *Smiles*

Husband: *smiles back and Farts* CHRIST!!! WHAT THE FUCK DID YOU DO TO ME?!!!

Wife: Are you O.K.?

Husband: that was the worse pyro-fart ever, My ass is still on fire.
by BrooklynsTyrant April 20, 2009

Words related to Pyro-Fart

ass burn fart pyro spicy enchiladas