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Similar to the very popular "Sausage Fest," but with a large group of girls partying without any guys. While sausage is metaphorical for a dick, cat is metaphorical for a pussy, therefore making it a Cat Fest.
Guy 1: Yo, lets go crash the Cat Fest at Lindsay's house.

Guy 2: Yeah man, they are in desperate need of some sausages.
by E&Lbreezybish(; August 13, 2011
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