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
Person 1: Hey, we're Eskimo Brothers.
Person 2: But we're in South Dakota.
Person 1: And?
Person 2: So that makes us Buffalo Brothers since we are in the U.S.
Person 2: But we're in South Dakota.
Person 1: And?
Person 2: So that makes us Buffalo Brothers since we are in the U.S.
by JacobW4 April 29, 2010