Definitions by Juniper3_3

slut butt 

When a girl's thong underwear shows over the top of her pants. Similar to plumbers butt, but on a girl. plumbers butt
Many guys/pigs like this look, but classy girls avoid having slut butt.

Eeeww, that girl has slut butt! My eyes!!!

slut butt by Juniper3_3 July 16, 2008