The unfortunate consequences of an improperly executed fart lighting. This is where the noxious gasses ignite within the ass and create a terrible, terrible mess.
"Why are you in a wheel chair?"
"When I was a kid, I had a fart lighting mishap, caught some ass backdraft, and burnt the lower half of my body right off the bones."
by Craig McRae July 17, 2006
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The unfortunate event that occurs while taking a dump, & upon impact the dookie jettisons a drop of toilet water up one's poop shoot.
I was having a great shit until I got terrible ass backdraft. They need to put less water in the toilets, or make them taller. shit.
by Harrison Bergeron July 17, 2006
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