Trashionista

A portmanteau of "trashy", "slut" and "fashionista". The word "slut" is omitted as it can't fit in fashionably.

It is used to denote a trashy whore, slut, skank, and occasional MILF who happens to dress fashionably like a supermodel. They are easily identified by their trendy clothes and willingness to work something out with the same sex in case two are not enough.