Apocalypse Girl

A girl who has sex with a large number of men with no regard for her relationship status or personal health. Similar to the act of storing a lot of meat in a freezer in preparation for the impending apocalypse.

Shorter terms can be A-slut or A-hoe.

"Bro, look at that chick out there on the d-floor in the tight black dress and big boots."
"Yeah man, don't tap that, she's a huge Apocalypse Girl, you'll probably get the herp er' somethin."
"Man, there's so many of those A-sluts these days.. shit."