I think it's supposed to be some kind of derogatory label for women, but is really just an identifier that the person using it is a worthless being whose opinion is as relevant as a gnats thoughts on the economy.

just the tip

I'd probably stare at you from behind my sunglasses for a while, and when I noticed my wife notice me looking at you, would say some kind of unappreciative comment about your skimpy swimsuit or how you're going to get severely burned with that pale complexion. I will then try to be more subtle in ~~staring at you~~ admiring you.