Cockney English greeting that evolved into a label for a genre of music that evolved parallel to but largely separate from punk rock - absent the ridiculous politics and playing dress-up. Originally performed by bands like the Last Resort, now employed by bands as diverse as Retaliator and Stormwatch, to name a few.
Rancid is not oi. Rancid is gay.
by BeerStomper July 26, 2004
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a type of harsh, aggressive punk music originally popular in the late 1970s and early 1980s
The sex pistols and the Clash would be considered "OI".
by Justin Krine June 15, 2018
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short for Oslo international school or obnoxious ignescent school
OIS is a gay POS school with a big cock
by fatmike February 12, 2003
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Usually used as a punk expression, first used in england by Cockney, means, yes, or yeh!
OI! to the punks, and OI! to the skins, but OI! to the world and everybody wins -The Vandals
by Meghan November 23, 2003
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*this word refers to the female genitals.

*it's root trace far back into time...before BC...it was the RG! the creators being: jenn and v
"JENN! damnit..just because im DRUNK doesnt mean you can just touch my OI OI and i wont care?!?!*
by Valisa June 18, 2004
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Used instead of phrases such as:
See you tomorrow
I'll do it tomorrow
Yeah, the morro

also, to "flip someone off" without the "flip" part
or simply for the sake of saying something.
1 "Yeah kid"
2 "Yeah"
1 "Oi oi the morro, then"
2 "Seven times"
1 "yeh, agree"
2 "Kill a Scret for me"
1 "Yeah, the morro"
2 "Oi Oi."
by Scret Hatin Moi November 16, 2003
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