A word of greeting amongst typically, but not exclusively, male Chavs, Townies and Scally's. Derived from the mispronunciation of the word 'boy', it is often used multiple times in the same sentence. It is most commonly used in a friendly manner, although when the enevitable eruption of tension and/or violence occurs between members of the community(ies) to which it belongs, it will be replaced, ironically, with the word 'mate'.
Male 1: "Alright buy? What's 'appnin buy?"
Male 2: "'ere buy did you see the buy other day what smashed that window down KFC in town?"
Male 1: "fuckin' 'ell buy yeh what a nutter innit buy!"
Male 2: "Yeh I know buy. Fuckin' gonna smash the cunt's 'ead in buy my fuckin' sister was fuckin' workin in there at the time wunnit buy. And she's fuckin' pregnant!"
(cycle down to next estate on BMX bikes)
Male 2 to Male 3: "Oi mate! You fuckin' smashed that window down KFC mate my fuckin' sister was workin in there and you nearly killed 'er fuckin baby. You're fuckin dead mate!"
Male 2: "'ere buy did you see the buy other day what smashed that window down KFC in town?"
Male 1: "fuckin' 'ell buy yeh what a nutter innit buy!"
Male 2: "Yeh I know buy. Fuckin' gonna smash the cunt's 'ead in buy my fuckin' sister was fuckin' workin in there at the time wunnit buy. And she's fuckin' pregnant!"
(cycle down to next estate on BMX bikes)
Male 2 to Male 3: "Oi mate! You fuckin' smashed that window down KFC mate my fuckin' sister was workin in there and you nearly killed 'er fuckin baby. You're fuckin dead mate!"
by sd999 February 11, 2014
When something's REALLY important. The tags "bold," "underline," and "italicize" begin with the letters BUI, hence the term. When someone using BBCode BUIs something, you know shit's about to go down.
by MegamanTTEX November 2, 2010
The amount of money required to buy a spot in a poker tournament. It's also generally your starting amount of money in the tournament.
by PsyMar June 27, 2004
by Wolfpack69 October 28, 2008
by Joe Ernster esq. August 5, 2007
"buy" is the dance you do while you download music off the internet.(usually in an illegal fashion.)
by Michigan Man March 12, 2009
"Hey, check out my new Brita water filter. Go ahead have some water - it tastes so good."
"You're so Bui."
"Hey, you wanna go out to eat?"
"No, I'm gonna stay here and study for my exam?"
"When's your exam?"
"In 3 weeks."
"You're so Bui."
"You're so Bui."
"Hey, you wanna go out to eat?"
"No, I'm gonna stay here and study for my exam?"
"When's your exam?"
"In 3 weeks."
"You're so Bui."
by Brett Hendar March 7, 2009