When a lady lets her pubic hair grow to such an amount that her vagina is no longer visible.
I better get laid tonight because of all the effort I put into removing my hairgina.

I couldn't go down on her because she had a full on hairgina.
by ol' sickboy May 4, 2011
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A parting of hair in back of ones head that reveals a balding area.
I usually tease the hair in the back of my head to conceal my hairgina.
by Stephanie Angel August 3, 2023
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