Someone who perpetually has a scorching case of Herpes or some other form of VD. See "Paris Hilton".
Lindsey Lohan isn't a firecrotch because of her red pubes. She's a firecrotch because of that nasty case of herpes she got from scissor-fucking Paris Hilton.
F.I.R.E.C.R.O.T.C.H
Flippin Irresistably Ravishing Even Cunts Relish Over Their UNCommon Hottness
Megan: "OMG. I AM an ugly orange whore! SHIT!
Let's spend the rest of our pointless lives
trying to make ourselves look better than her."
Amy/Molly: "Let's call her a Firecrotch...
even though shes not a tramp like us...
and doesn't pull off her pants at the drop of a hat so we really don't know.
But, hey, were bitches so...LETS DO IT!"