It's the Thai word for "Oyster"

Coincidentally (or perhaps not) it is also slang word for a girl's private area. (must be because of the pearl). I'm completely serious, this is totally accurate -- ask any Thai.
Seafood waitress in Thailand: Say, sailor, would you like to try some hoy?
by chez irman August 13, 2005
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Word used as "Hi" or "Hey" in Filipino
(someones walking)

"Hoi!"

"huh? what me?"

"yes"
by AzN NateZess May 29, 2005
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Pronounced H-wee

This is used as a greeting.

It is said the term comes from when Craig accidentally pressed "O" on msn whilst greeting a contact (Hi but pressed H,O,I)
The word was then used from that day on as it was cool.

This word has also been adapted by Dai to Hooooooooooooooooi

The longer you hold the pronunciation of it the greater you happiness is supposedly.
Col: Hoi!
Tan: Aight son?

or

Dai:Hooooooooooooooooooooooooooi!
Craig: Gosh you're happy today
by Davegroglonthedole September 05, 2007
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The mediocre way for saying hi in the 21st century
Friend: Hoi

Me: Hoi, did you bring me pastries?
Friend: Yeah...I think
by lemon187lime March 01, 2018
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A funny way to say the word Hi. Adding an OI sound to the letter H.
Hoi Kylie!
by KylieJener November 26, 2018
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hobo hoi hoi-(n) used in j.LE quote "STFU U MTFB GO FUMH U WSHHH" the wshhh stands for "weiner sucker hobo hoi hoi" just another insult to refer someone as a hobo on the streets sellin their bodies to random people and loves to eat ho' ho's
I hate you, you freaking hobo hoi hoi i hope you get raped and choked from eating ho' ho's
by Jennifer Le May 06, 2008
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Hoi is a very very VERY adorable way to say hi it was said by a very adorable person

And she is soooooooooo adorable
"Hoiiiiiiiii how are chuuuuuu???"
by The random hobo under your hou September 11, 2019
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