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!!!
by Juniper3_3 February 21, 2006
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a girl that fucks a lot of guys and knows that but acts innocent. When you see her the slut just comes to your head and you just know she likes to get fucked hard.
by dwils April 22, 2005
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A "slut butt" is a girl or boy that participates in slutty, yet childish and immature acts like: licking some guy's face that you just met, and/or grabbing a chick's boob making a cartoon honking noise while you have a girlfriend.
Dude, Maria was dancing with a random guy last night, and was all over him, with her boyfriend standing RIGHT there. . . She is such a slut butt.
by zoe, dipshit February 7, 2010
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When someone rolls the tobacco from cigarette butts in a zig-zag.
"i was hurting for smokes, so i rolled up a slut butt"
by phatzane® January 15, 2005
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one who sells their buttox on a regular basis for the pleasure of men. usually these butts become cum harden and the slut butt has problems in taking shits
by captrickless October 1, 2003
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a person who one likes to take it up the ass to much. thus the asswhole becomes too loose. also, a person who one doesn't like at all.
i heard heard she dows anal all the time.

ya i know, what a slut butt.
by freakypeeky August 16, 2010
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Britney H.! shes such a slut but and sunny likes!!!
wow stop being such a lovely slut butt!
by Sunny August 20, 2004
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