What happens when your ass is sun burnt and it begins to peel. The skin that peels is known as "ass skin".
"Marissa's ass is burnt so she is peeling her ass skin"
Skin on ur ass that guys like to frickle frackle dickle dackle pickle packle tickle tackle billy backle fuck
Beckey: Omg! She has such an Ass Skin!!
Jessica: What's her skin care routine???