Got this from ABCs Bachelor website (the message forum)
For the new urban dictionary:
proposed new word:
to MESNICK: after telling a young woman you are "in love" with her, and after causing her to profess her unending love, devotion, and commitment to you, then recklessly or intentionally trampling her heart, making a complete fool out of her - then dumping her preferably before a large audience, always giving only the most vague of reasons, being sure to add lots of platitudes, and all the time showing little if any real remorse, and as a final dagger -then professing your love for another woman right in front of her..
As in: I really mesnicked that chick.