Panty Bangs
When her pube patch is so big, so thick and bushy that the hairs hang out over the top of the panties like some straight-across bangs.
I knew she was hirsute when she lifted up her shirt and all I could see were matted panty bangs.
panty-banging
When one masturbates by rubbing his penis with a woman's pair of underwear.
Aldo was super horny so he stole a pair of Helena's underwear and was panty-banging them all night long.