A skank is just a dirty whore.A very promiscuous girl or woman.Social class hasn't got shit to do with it nor does race you ignorant cunts.
Many wealthy women are skanky hoes.WTF do you call most of the famous sluts you see on tv?
Madonna's a nasty skank.I'm pretty sure she's filthy rich.
Paris Hilton is an obvious rich skank as well.
And skank is also the SKA dance thing.