Like the bee's knees, opposite to the bee's balls and balls to the walls, the mutt's nuts refers to something which is the best, fab, fantastic, or even downright scrumtrellescent. First used in "Beneath A Steel Sky".
Holy acorns, that stallion is one manly stud horse! His gonads must be the mutt's nuts!
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."