Top Definition
A female who surfaces out of nowhere and disrupts a male's way of life and confidence in himself and his female relationships, leaving his life in disarray. Estrogen bullets can be dangerous, especially when a man has sworn off womanizing and other debauchery.
I had stopped drinking, womanizing and began dating a lovely girl from Park Slope, when all of a sudden an estrogen bullet from the East Village struck me, leaving me bewildered and insecure about women.
by Hungarian Simon December 11, 2010
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