bai 

1.guyanese "boy."
2.just a boy.

wah gwan bai?? (what u doing boy?-da sounds really lame sayin it like da in american.)

bai by wun gyal October 4, 2003

Bai 

Slang term used to refer to one's best friend/Home-boy.

Chuck is my main bai. He is so cool!

Bai by CuseKid2003 December 4, 2010

bai 

a young, male, usually from the westcountry and usually white who is loud, antisocial, ignorant a total twat and often appears to be a stereotypical chav. Many bai's have either a criminal record, or just a general scallywag. However calling someone a bai is not an insult, but more of a statement used in a situation and his friend says "geddon bai!"
Bais originate from mid/east devon.
A classic, textbook bai, would often be wearing a white sports jacket, short unnecessarily gelled hair, a fake gold chain necklace and a cap worn loosely on the back of the head. The resting hand position for a bai is with the middle finger up.

bai 1: "mate, i keyed that popo's car the other day!"

bai 2: "GEDDON BAIIIIII!!"

bai by hul09as June 22, 2010

bai 

Often used in Cork Ireland as another word for boy. It is literally the word "boy" but is pronounced "bye" because of the Cork accent.
It can be used in a friendly manner or to confront someone.

Hey bai, how goes it then?

Listen bai, I'm not to tell you again, stop eyeing my bjor, alright?

bai by Pilot O'Mally November 26, 2006

Bai 

Bai is just another way of saying bye.

Bai!

Bai by Boredom got the best of me July 2, 2018

bai 

Used at the end of the sentence to refer to a person. Doesn't have to be a boy, can be any gender.

Johnny: I'm tellin ya bai, it's true!
Seán: Ori bai, no need to repeat yerself!

bai by Kutoban February 3, 2021

BAI 

Born before the internet/
Born after the internet

Coined by graphic designer and artist Sameer Farooq

That girl must be BAI, she has no problem reading hypertext literature.

BAI by oiseaux brun March 5, 2013