oi m8 

"Oi" as in hey, hi , or hello.
"M8" as in friend, person, or just a living thing
Basically when put together can be used many ways, just saying hi or being aggressive.

Saying hi: oi m8 how you doing
Aggressive: oi m8! Oi m8 Are you stupid? Oi m8 Fight me.

oi m8 by treyvon2014 April 3, 2015