When your associate overindulges on grilled steak and beer every night for the better part of the week, then passes out and farts the most putrid stench possible without shitting himself while asleep.
The noxious fumes let from ones asshole after consuming excessive amounts of processed meat, such as pepperoni or beef jerky. Occasionally paired with meat sweats, meatfarts can peel the paint off a car door and have been known to render small children unconscious.
(n) a meatfart is the worst kind of fart, usually only released by dogs, cats, or other animals that generally only eat extremelyprocessed meat. Meatfarts burn the nose, and the soul.