Devil's Fart
Last fart before a poop. Usually the worst smelling after a long line of farts. The Devil's fart lets you know that if you try to fart again, a poop might come out.
Sean has to rush to the bathroom because he just had his devil's fart.
Devils Fart
When it’s so hot out that you have the worst swamp ass and the gas that’s expelled is so rancid it makes your whiskers curl.
Little Timmy went jogging in the hot summers sun and came home to greet his mom and dad with a devils fart that was so bad she fainted, and the hair on his mustache curled .