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1.
Portmanteau of "Backwards Wink".

The Bwink, or Backwards Wink, is a super-suave method of flirting. It is carried out by turning ones head to the side, and briefly closing the eye furthest from the subject of one's affections.
1. "OMG, that chick is so hot! She ttly bwinked at me!"

2. "Dude, I am so into that guy over there. I'm gonna bwink at him. Works every time!"

3. (;
by Wendy Von Birdhausen February 24, 2010
 
2.
What someone who can't wink properly does when they try to wink. Both eyes kind of close together and they end up looking like a retard.
Kate, please stop doing that with your eyes. You're bwinking, and to be honest, it's making me a little uncomfortable. Would you like some eyedrops?
by BKT May 02, 2007