The most discusting floppy pussy you have ever seen. Or a dirogitory remark to say to someone you don't like.(Cause they dont know what it means either).
"This girl last night had the biggest Poon Flop i have ever seen."
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."