Top Definition
BYB
It is an abbreviation to Back Yard Breeder
I am Not a BYB. I am just rehoming my dog for a small adoption fee.
by M Abdel Aziz October 02, 2007

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BYB
The Backyard Band native to the D.C metro area.To the bitch ass nigga/cracker who got it deleted:
........................./´¯/)
......................,/¯..//
...................../..../ /
............./´¯/'...'/´¯¯`·¸
........../'/.../..../......./¨¯\
........('(...´(..´......,~/'...')
.........\.................\/..../
..........''...\.......... _.·´
............\..............(
..............\.............\
thats especially for you.refer to fuck
The leader of BYB (big G) also plays slim charles on hbos the wire
by zxulu tha big lip bandit December 14, 2004

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Short for 'Back Yard Bong Session' or 'Back Yard Blunt Session'
Shane: "Rob just invited me to a quick B.Y.B.S with his new bong"
McDeev: "In his backyard?"
Shane: "Of course"
by McDeeverton May 27, 2009

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BYB
Borrow Ya Boo - when you borrow someone's boo for the night and return them the next morning.
Man I need some sex. I might have to BYB tonight
by jellyjacobs February 26, 2015

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Boobs
I cant believe how big Miss Cucumber's b(.Y.)bs are! They make me into such a hornball.
by SAY que? May 18, 2010

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BYB
1. Back Yard Basketball
- full contact basketball in the territory of the elusive S S S
- not for the weak or timid
2. Back Yard Baseball
- endless whiffleball game in GARs yard
"Dude! re'e'er BYB?"
"duuuud...i am STILL trying to recover from games we played 10 years ago"
"ferreallydohyo"
by GAR February 05, 2004

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byb
Bring Yourown Booze. When throwing a party, say the party is "BYB" and you will attract hardcore drinkers...
Mike: "Dude, you hear that Jim is throwing a party, its BYB."

John: "Looks like another typical night that I'll be wasted..."
by Will January 06, 2005

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