Condition that happens when a man or woman wearing tight clothing that hides a muffin top bends over or otherwise uncovers the bare muffin top for the world to see.
Dude 1: Bro what's so funny, why you spit your drink out?
Dude 2: Dang man, that thick girl over there just leaned over to grab the mustard and the muffin came out da wrapper. That shit is gross!