glute and limb bag
A glute and limb bag is another word for pants, usually of the baggy variety. The 'glute', a slang/informal term for any of the three muscles in each buttock, and the 'limb', pertaining to the legs, are all housed within the pants, referred to as the 'bag' in this phrase. Hence the combination 'glute and limb bag'. Regional dialect of Upstate New York.
Back in the day, that boy Sammy Davis Jr. could dance right out outta' his glute and limb bag!