Two biological brothers that acknowledge being intimate with the same female and remain on good terms. Similar to an Eskimo Brother, only they keep it in the family.
Male 1: Yo did you hear Jake and Josh are buffalo brothers?
Male 2: No way?!
Male 1: Yeah once Jake left the country Josh came across the pond and shagged the same girl.
Male 2: No way?!
Male 1: Yeah once Jake left the country Josh came across the pond and shagged the same girl.
by Rover19 June 7, 2019
Get the Buffalo Brothermug. A word used to describe the relationship between two males, whom have found they had intercourse with the same male, mutually known by both (much like eskimo brothers).
Chad: Dood you will never guess who I banged last night.
Brad: Who?
Chad: I totally fucked the shit out of Chet!
Brad: Ohhh man no way! I totally fucked Chet in the ass too!
Chad: No way! When?
Brad: Remember when Chuck had that awesome Christmas party last year? Totally pounded Chet in Chucks champagne room then, he was so loose!
Chad: No way! That makes us unicorn brothers!
Brad: Fuck Yeah Unicorn brothers for life!
*Brad and Chad then preform a high five
Chad: Dood, Chet is such a butt slut...
Brad: Who?
Chad: I totally fucked the shit out of Chet!
Brad: Ohhh man no way! I totally fucked Chet in the ass too!
Chad: No way! When?
Brad: Remember when Chuck had that awesome Christmas party last year? Totally pounded Chet in Chucks champagne room then, he was so loose!
Chad: No way! That makes us unicorn brothers!
Brad: Fuck Yeah Unicorn brothers for life!
*Brad and Chad then preform a high five
Chad: Dood, Chet is such a butt slut...
by WIldBillBigCock March 27, 2016
Get the unicorn brothersmug. Derived from the concept of “Standing on the shoulders of giants” – a person who has experience and knowledge they can share with you openly and impartially to help you avoid mistakes, improve and successfully reach your goals.
by NDW41 June 20, 2019
Get the Bigger Brothermug. by Great hoodinu March 24, 2020
Get the Wills Brothermug. 
A person who has many other priorities before sexual interaction. Not necessarily a virgin, but someone who has a minimal sex drive, much like a scared virgin.
by jfc12345 May 11, 2020
Get the Virg Brothermug. by inventionzwey December 15, 2018
Get the Rubber Brothermug.