When you have a threesome with two chicks that are related, preferably cousins, hence the name. Any bros that happen to be around after a Demarcus Cousins is completed, are obligated to bow down.
Dude, I Demarcus Cousins 'ed the shit out of those chicks at the wedding reception last night.
Who knew those sisters would make for the greatest Deamrcus Cousins of my life!
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Cousins or second cousins that are inappropriately affectionate to each other.
Cousins that butt fuck each other.
Hey, what are Aaron and Deanna doing over there?
Oh no, it's cool, they're butt cousins.
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Two or more people whose only relation to each other is that they have slept with the same person.
Tommy Lee is dutch cousins with Scott Baio. (Because they have both had sex with Pamela Anderson at one point in their lives).
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To smash heaps of meth over a three day weekend after a professional game of Aussie Rules Football...
Deano did a bit of a Ben Cousins after the North Melbourne match last weekend.
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A part of the family you would like to get to know but he is always with his buddies. But they love you just the same by not hitting you with a dodge ball
"Don't you dare hit me I'm your second cousin"
"you don't want to do that we are family"
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When two bro's are eskimo brothers with the same bro, then the first two bro's are cousins
Ted and Paul are eskimo brothers with Jimmy, so Ted and Paul are eskimo cousins
"Dude you're eskimo brothers with John? Me too! We must be eskimo cousins"
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Usually an overweight female relative or friend you can call on to beat up another female for you, since being a dude, you can't do it yourself without looking like a total turd, no matter how much that she deserve it.
That bitch of an ex girlfriend trashed my Vette. I think I will give my fat cousin a call.
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