knuckle brother

the tightest bond two can have...typically occurs when two friends simultaneously break their knuckles. if you mess with one, you mess with both.

“What are those god damn knuckle brothers up to this time?”

by greenryan420 February 27, 2018

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Brother

Usually an annoying little shithead who will do everything in his power to ruin your life and turn things on you to make you look like an asshole.

I don’t even know how my brother has friends - he’s a dipshit!

by Erudess_Memes123 April 11, 2022

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inverted brother

When you and a bro sleep with the same girl, you become inverted brothers. Instead of coming out the same vagina, you've both come in the same one.

Me and Bob are inverted brothers!

by cobson May 14, 2015

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Blood Brothers

A sexual act. Performing a Double Penetration with a relative or a close friend while the female is on her period

Dude, me and Jake became Blood Brothers last night. Jess is such a nasty slut...

by Cubsbball25 May 28, 2019

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Mongolian brothers

when two friends know that they have slept with the same chick and refuse to admit it to eachother because she was really ugly, a total skank or lame in bed

i was having a drink at the bar with my best friend when a horribly familiar voice behind us shouted "hello boys!". One look at my friends face and I knew we were Mongolian brothers.

by blackstever December 19, 2012

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