When the subjects trousers / shorts are wedged firmly between their butt checks. This gives the illusion that the subjects bum is hungry and eating the subjects trousers.
Hey rob, take a look at her bum. Her bum is eating her trousers.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."