Top Definition
That one dirty skank at a party who everyone avoids during that party. However in drunken desperation and failure one may turn to for some "lovin". Likely if the fallback slut in indian he/she will still be avoided/shunned.
dude 1: Shit bro that Leanne chick is all over me help me get rid of her!
dude 2: Dude give it until the end of the night she's your fallback slut.
dude 1: Man are you kidding me?? That indians fucking nasty!! Not happening!!!
by partyparty37 May 20, 2009
12 Words related to Fallback Slut

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