A female who specializes in the area of cockblocking. That is, she will knowingly and expertly prevent a guy from using his cock in a sexual matter, usually with a pre defined partner. Such activities will usually result in masterbation.
Guy 1: Dude, that girls chick prevented me from having some no pants time with her.
Guy 2: I know dude, she's an excellent cockblockstress
by CockblockHater4Life January 18, 2009
5 Words related to cockblockstress

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