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When you have six dudes cum in a chick and you all have to take a paternity test. Whoever is the father loses.
I lost cum roulette because I have a kid.
by askdkd February 26, 2012
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Cum roulette is when you and a couple friends play Russian roulette with cum first to cum looses
And then bill Gates comes out of no where and anal fuck all of you until you bleed

The first one to cum is the looser
by Jaxsenjack June 13, 2016
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