A puss filled pouch of skin found in anus or on the buttocks of grown men, used by rodents (usually mice or rats) for nesting, burrowing, gathering, ect.
is a mucus y sack that hangs between the balls and the butt in the taint region. if it pops the mucus flow in to your blood stream and you die. a woman or man can perform sexual acts upon your butt sack. and it gets dry when your butt sack gets horny.African Americans and women do not have butt sacks.