A jock-strap like device worn by women to prevent their excess vagina skin from sagging and hanging out of their shorts or skirts.
(WARNING!: A Hairpie Hugger is not to be worn with thong due to recorded side effects of possible braintooth, iphone malaise, finger grumblage and minor heart explosions.)
"Hey....I couldn't help but notice your vagina is hanging out."
"Oh shit! I forgot to wear my Hairpie Hugger."