Sweater Slut
A female who wears unattractive clothing (ie. a sweater) and still manages to look like a whore.
A: "Have you seen Hannah's outfit today?"
B: "Yes, she looks like a prostitute in training!"
A: "I know, she's such a sweater slut."
B: "Yes, she looks like a prostitute in training!"
A: "I know, she's such a sweater slut."