Originally used by youths as a shortened version of bretherin to describe their gang/group members.
It has
now been picked up by many
university students, especially rahs, in an attempt to
sound cool or ghetto
It is now often used in place of a name for someone who is unknown.
youth: "yo, breh lets get wasted"
rah: "yaar, yaar, thaaats like
literally a mega idea. I'll jast get some more brehs involved.
mate, its going to be totally messy"
youth: *sigh*