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A combination of the words "slutty" and "lusty"... slusty.

A good looking girl or woman (usually under the age of 25) who acts in a slutty/promiscuous manner.

Origin, New Zealand. More specifically, Tauranga.
Paul: Dude, that chick is such a Slusty.
Cam: Nah Man she's the goodist bitch.
Paul: I just saw her getting with two different guys.
Cam: Ok, perhaps a bit of a Slusty.
by DJ-Simoney January 14, 2011
A combination of Slut and Custy - a female Custy
I just sold a gram to this slusty for $20 - bitch didn't even realize it was shake!
by tillbrooklyn April 23, 2011