Pronounced “BAAAAAAH”. Used to say farewell to friends or strangers. Never to be used in a negative context. Always to be yelled in a ~special~ way.
Ok BAIIIIUIU”
by Sam baller October 7, 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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Alternative n00btalk for 'Bye'.
1. i has to leaves nao
2. bai
by Racecar56 April 10, 2009
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A Belfast slang term for the word “boy”. Plural of this word is bais.
Oi mate, look at that bai over there wanting a scrap

I’m going out with the bais tonight to thompsons garage for a bit of switch
by belfastbai November 13, 2019
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is a name for muslim girls that has blue blood in their family in the Philippines.
by sipatgirl September 25, 2008
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Children that are usually the offspring of hood rat chicks. These children are usually unkempt and seen running around impoverished neighborhoods with little or no clothes on, although it is usually a diaper. Their hair will be either half done or not done in weeks, and the first word out of their mouths is usually a curse word. This is the begginning of the phase of becoming a thug.
Damn, did you hear those kids at that resturant cussin' and throwin food? They some bay bay kids
by KKeevviinn October 22, 2007
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