Cockney slang for "hey". Also a british style of music, named so after the band Cockney Rejects who first used it in their lyrics, although Sham 69 was the first Oi! band. (not correct without an exclamation mark!)
by Skalabam May 7, 2003
English slang for "hey"
also a type of music that attracts mostly street punks and skinheads
Hey did you here that new oi band called the cockney rejects?
(kids walks by another kid)kid 1:oi kid 2: oi
by ian May 7, 2003
1. A word used by english ppl like myself when trying to attract the attention of someone. 2. also can be used in a different way, if some one was to bump into you in the street, you'd turn around and say "oi!"

it doesnt really mean hello tho.
"Oi, are you listening to me?"
by english gal July 24, 2003
a way to call someone else, to get one's attention
OI THERE! leave that golf ball alone!
OI! watch where you're going!

by pie man March 12, 2008
"Oi" in brazillian portuguese means "Hi"
-Oi fulano.
-oi ciclano!
by Roberto Civille Rodrigues August 7, 2004
Aussie slang term meaning 'hey' or 'over here'. A means of grabbing someone's attention. Popular war cry for Australians at the Sydney Olympics.
by Gabrielle O June 21, 2005
oi m8 get other here right now
by MAXKELLYMADETHESE!!! February 14, 2019