When a male is about to cum, you aim for the target's eyebrows. While the male lets his load out, he carefully covers the eyebrow section until it gains symmetrical proportion. It is optional if you want to just draw on one eyebrow.
Male: "You like your cumbrows? Now go to the bathroom and look at it."
by Jien October 26, 2007
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An eyebrow with vey pale colour resembling dried cum
Hey Luke Gerks has got mad cumbrows
by Gerkinator July 11, 2017
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