When a male tucks his genetalia behind his legs to make himself look barren from the front, but when you view him from the back it appears his ass has a bunch of grapes hanging from it because the penis and balls have been suffocated between the legs.
Joe gives himself ass grapes just like Buffalo Bill did in "Silence of the Lambs."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."