A secret kept between two friends of any gender. The difference between a regular secret and a blood brother's secret is that a B.B.S is taken to the grave with both people.
Person 1: Hey, don't tell my girlfriend about what happened last night
Person 2: Sure thing, blood brother's secret.
Person 2: Sure thing, blood brother's secret.
by giraffe112 November 9, 2015
Get the blood brother's secret mug.someone who became your brother through sharing blood. ***required to get a tramp stamp of their blood sister.***
by downwithsatan6666666 March 29, 2010
Get the blood brother mug.by Penguy1738 November 28, 2016
Get the alaskan blood brothers mug.To further escalate your friendship with a male counterpart and become related; in order to do this you must be in the same orifice as your friend at the exact same time . Also know as a train! Chu-Chu Motherfucker. I REPEAT THIS IS THE ONLY WAY TO BECOME KIN.
Bro are you wanna be my blood brother?!
Friend: I thought we already were!
Naw you're my best friend but to be my blood brother we gotta run a train together!
Friend: I thought we already were!
Naw you're my best friend but to be my blood brother we gotta run a train together!
by bashy flashy cashy July 21, 2020
Get the Blood Brother mug.When a guy dances with a girl who is having her period and the blood leaks through and gets onto the guys jeans. This blood stained fellow is now blood brothers with the girls current boyfriend.
by Mr. Nuguuyen December 28, 2007
Get the Blood Brothers mug.a guy who goes about making little children smile throughout the galaxy. He's a friendly character, and has a heart of gold. It is rumored that during every Christmas, he gives away abundances of polish sausages and ham to all the hungry children of the world.
by Jon P August 30, 2005
Get the Blood Brother mug.A sexual act. Performing a Double Penetration with a relative or a close friend while the female is on her period
by Cubsbball25 May 28, 2019
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