"Oi" is a British version of "Hey", also a music style.
In Portuguese, Oi means "Hi". Maybe Britain get the accent of the Portuguese while they saved them for the Spanish king.
Oi is used(used to call someone, or to say "hi" in other version) in Australia,America,Canada, and, duh, Portuguese countries.
Many people in North America(Yep, Mexico and Greenland count) says "oi" as a natural part of their language or to do the same thing we do.
1)OI! Anybody here? Aloha?!
2) Oi! Ya' over there! PISS OFF!
3) Did you heard the new oi music?
4) Oi, mate. Wanna go fishin'?
by TheUltimateUrbanCanadian June 6, 2014
Get the Oi mug.
1.a casual greeting.
2.a sub division of punk rock.
1.oi! hows the new baby, mate?
2. they were chanting oi oi oi at the show last night, it was a crazy punk show.
by poop toucher January 15, 2008
Get the oi mug.
It is middle eastern-english for oi oi oi! It is used as and exclamation of surprise/shock and contempt; when a incident of some seriousness occurs.
Arab 1: Eesaayy bro did ya 'ear bou da' figh' yeaaahhhhh??

Arab 2: Oi oi oi oi oiihhhh, whaa' happen yeahhh??
by commonbastard June 13, 2012
Get the Oi oi oi oi oiihhhh mug.
Short for Optical Image Stabiliser. A system in digital photography, astronomical telescopes, videography or binoculars which increases the stability of an image and reduces the blurs.
Panasonic is the first manufacturer to have successfully incorporated Optical Image Stabiliser (OIS) into its compact cameras.
by fokuz December 4, 2008
Get the OIS mug.
Also, Japanese for "hey".
Oi, baka, nan da yo!
--Hey, stupid, what (the)!!
Oi, naninani san, chotto matte.
--Hey, so&so san, wait a moment.
by Anonymous November 5, 2003
Get the oi mug.
A slang phrase that has potential to be useful. However, it is overused by moronic skinheads and Nazis, who contradict themselves with everything they preach! Usually a person who will use this phrase will also talk about how much they hate Jews, Hippies, and Druggies. They are too fucking retarded to realize what a drug is. They don't see how they contradict themselves when they consume their mass amounts of whiskey yet fuck with stoners.
Stinky motha fuckin skinhead: "Oi oi oi! let's earn our laces by beating the bloody fuck out of this smelly fucking hippie!"

stoner guy: "Don't make me come over there and shove your balls down your hitler loving faggot throat!"

(Stoner does it anyway cuz Hippies hate Nazi pricks just as much)
Get the oi oi oi! mug.
An Australian way of getting someones attention, or if they bump into you or some shit like that.
(Example 1)

Bob: Oi cunt! Ya wanna fight, do ya?

(Example 2)

*Someone bumps into Bob*

Bob: Oi ya dumb cunt, watch the fuck out, ayy?
by Oi cunt fuck you motherfucker! November 17, 2009
Get the Oi mug.