Top definition
A form of slut in which a girl/guy makes out or kisses with a large amount of people but never goes to 2nd or 3rd base with anyone.
The word nun is used as a reference to religious nuns because they do not have sex with anyone.
Guy 1:"Dude, I made out with Victoria last night!"
Guy 2:"Me too...."
Guy 1:"Did you get down below?"
Guy 2:"Naw man :("
Guy 1:"Me neither, what a nun-slut!"
by BenWillcox December 13, 2009
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