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The moment when a female or a group of females laugh or comment on an inside joke or something the normal masculine male could not even begin to understand.
Group of teenagers sittig at a table...
Boy 1: hey did any of you go see that new werewolf movie yet?
Boy 2: not yet but I want to go with my girl to see it
Girl 1: hey remember back on that ego field trip when ... Told every body that she doesn't shave until the end of every month?
Girl 2: yea that was totally gross
Girl 1: omg some girls need to get some more class before they can hang with us
Girl 2: exactly

Boy 1: what?
Boy 2: idk man. That was a estrogen moment bro
by Gino314 February 12, 2010
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