Top Definition
When someone is unattractive but almost everyone finds them unbelievably sexy for no apparent reason. Though the "sexiness" may be linked to their voice, actions, charisma, and so on.
Girl1: Oh my god, he is so sexy!
Girl2: What, you think he's good looking?
Girl1: No, he's hideous.
Girl2: Then how do you find him sexy?!
Girl1: I don't know...It must be the 'Graverobber Effect".
Girl2: Oh, okay.
by Lovingmyth October 28, 2011

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