Oi
/ɔɪ/
noun
(sometimes capitalized) A working-class punk rock subgenre of the 1970s, sometimes associated with racism.
interjection
Said to get someone's attention; hey.
“Oi! Stop that!”
An expression of surprise.
“Oi! This is new!”
An informal greeting, similar to hi.
“Oi! How's it going?”