monkey nuts is when a person is so unfortunate to not change out of a bathing suit after going to the beach and the sand, salt, and sweat gathers on and around the ball sack and no matter how much your sack itches it will not go away
This is what happens when a man doesn't shower for a days. A crust forms underneath the scrotum, which can be used for spreading on toast, on our grandmothers lips.