The farts of an obese person are very distinct. They have a hallmark "Plop" sound.Like an air bubble in wet concrete,the fart gas slowly eases its way to freedom between the jelly-like,fat butt cheeks causing the pizza dough buttocks to jiggle slightly.
when a person gets so mad and toxic they will inflate their body and proceed to let out the biggest, the loudest fart ever.
It's also used to curse fat people.