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.

BYB by M Abdel Aziz October 17, 2007

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

BYB by zxulu tha big lip bandit December 14, 2004

byb 

byb means to "break your back" , as if you were taking a picture and sticking your butt out to make it appear bigger

"did you see her picture on instagram ?

"yeah byb much ?"

byb by dank meanings February 4, 2017

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

BYB by jellyjacobs February 26, 2015

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..."

byb by Will June 20, 2006

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"

BYB by GAR June 20, 2006

BYB 

Be Your Bæ.

Julissa: BYB?
Caleb: Sure.

BYB by Wrenvy November 20, 2014