Top Definition
Is an adjective to describe someones unexpected obsession and infactuation with a person.

Often happens when the person has been on a date with the other but doesn't really know them yet.

Symptoms:

Continuous talking about the other person
Facebook Stalking
Daydreaming
Friend 1: I can't get him out of my mind! i just can't stop thinking about the other night!!

Friend 2: You are so nullmend!! You won't stop talking about him.
by platypus! July 25, 2011

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