When somebody cannot answer you in a real sentence, but instead merely mumbles something you can't quite hear, and trails off; possibly chuckling as they do so. It is an unexplained phenomena that usually occurs under stress, or if that person is not comfortable speaking with particular people and is trying to get away.
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."