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When a larger girl encourages or forces a large amount of alcoholic beverages and illegal substances to be consumed by a man she is interested in (but does not share the attraction with her), then proceeds to force herself on him while he is unable to resist due to his inebriation.
Concerned friend:"Dude how could you get with HER?"
Victim: "I have no idea man, I wouldn't touch that in a million years!"
Concerned friend: "Sorry man, you just got vannahed!"

Friend: "Did you hear what happened?"
Friend 2:" "Yeah! I can't believe he got with her, that's gross!"
Friend: "It wasn't his fault. She vannahd him into it."
by halloweenmemories May 22, 2011
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