It is a girl who is always showing some form of cleavage and has more boob than brain. This girl has surpassed all levels of Slut, Skank, Whore, Hoe (you get the picture...) and has reached the highest level of sluttiness. Normally works as a sleasly bartender or beer-tub girl.
Girl 1: Oh my god, that bartender is such a Skank-A-Hoe!
Girl 2 : I know, like is that even a skirt or is that a loin cloth?