A verbose member of a recreational-paddlers group who refuses to just "shut up and enjoy da sounds of nature".
One would do well to verbally interview each prospective member of a whitewater-adventure expedition prior to signing them on, to lessen da chance of having any kayackers in said group!
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."