PPLbelikewhaddup's definitions
It means when a girl wears really short shorts that are so short that you can practically see her ass hanging out of the shorts
Abby: Cara look at that slut butt over there
Cara: omg look at her! You can see more of her ass then her shorts!
Cara: omg look at her! You can see more of her ass then her shorts!
by PPLbelikewhaddup August 10, 2013
Get the Slut buttmug.