a word used insted of the casual "hello"
by Danielle April 8, 2003
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"Hey!", "What!" or similar to "Hurray!"
Dude: "Oi! Liam!"

Dude: "Hey, Liam!"
Liam: "Oi?"

Durring applause "Oi!
by SnottyIrishman August 2, 2005
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Oi, or Oy is cockney now mebbe, but its Yiddish roots go way back. In Yiddish it's a general expression of existential angst. Its roots are pure Hebrew, where "Oy" means "woe".
"Oy, so you think you have troubles?"
by Sharon Ann July 25, 2005
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the definition of hello or"oy" but with an "i" for some reason...it is mainly use for showing off their deep accent
Deep accent person: oi watcha' doin mate?

Someone: oh im just...uuh-um-I-um...doing drugs!
by August 11, 2021
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"Oi" a word that is in the language Sinhala. It is used when one is angry to refer to someone.
by rocketknocket November 18, 2015
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