Another way of saying "good-bye," or "bye."
Why it is spelled in such a way is beyond me, but it is catchy. The word bai is used in the famous internet phrase "kthxbai."
by Kylezors August 19, 2008
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1. a more efficient way of saying "farewell" and "fuck you"

2. an extremely effective word used to win any argument (best used when all other insults have been said + especially effective when said to parents)

3. an alternative way of saying "My name is ______. I'm __ years old, and I don't give a f*%k."

5. fruit juice full of antioxidants
Brett: You are a repellent, ball busting, fart taster.
Jake: Yeah, but yo mama is a revolting, heavily built, cock monkey.
Brett: BAI.
(Brett therefore wins the argument.)
by cusp February 10, 2011
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Slang substitution for "boy" used in the countryside around Northern Ireland. Usually used in a greeting,
Greeting- "Awrite, Bai?"

Further Examples, "I was in Starbuck last night, bai. One of the waitresses smiled at me and I says, "Awrite girl?" She says, "Awrite bai?"
by Whu Flung Dung December 27, 2009
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A Filipino slang (Cebuano) meaning friend, pal, homeboy, homie, etc.
Sup Bai, how u doin'?
by Shahram Senerpida November 24, 2008
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1. My exuse when ppl say I don’t drink enough water (its flavored water)
2. How us Gachas say “bye” in the comment section (or in a funny skit)
1:
Person: You don’t drink enough water, you unhealthy kid!
Me (Littletale Sophia): Bitch I drink bai

2:

Ashley wilburn: I gotta go...
Me: Bai!

Ashley: bai bestie!!
by Littletale Sophia January 20, 2021
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A stunning, weird and freaking awesome friend that you will ever have. She may not be responsible but she's loyal and can keep the deepest secrets. She may not be smart but she is kind of wise. And maybe those are the reasons I fell in love with her.
Bai is awesome!
Look what Bai made!
by shamalangggg April 21, 2013
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is a name for muslim girls that has blue blood in their family in the Philippines.
My friend is Bai. She is a princess.
by sipatgirl September 25, 2008
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