Another name for watermelon, according to the Bluesbrothers.
See also cool water sandwich.
Not to be confused with the cool water sandwitch, a single serving of cold beer.
1. "I had a coolwater sandwich and a Sunday-go-to-meetin' bun"
2. I ate many coolwater sandwiches to beat the summer heat.
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."