Top Definition
BYW
Shorthand for "Boo, you whore."
"r u coming 2 the party tonite?"

"no, gotta watch 'lost.'"

"byw. get tivo!"
by Yma October 27, 2006
BYW
An anacronym for "Back Yard Wrestling." Refers to people, usually teenage males, mimicking WWE professional wrestling by pummeling each other, usually with weapons like cookie-sheets, steel folding chairs, thumb tacs, barbed wire, etc. "BYW" specifically refers to a particular ground.
My friends just started a BYW called "DKW" which stands for Dumb Kids Wrestling.
by Chris Jackson December 12, 2003
BYW
Bitch, you wrong.
A. Her momma was ugly too. Fat and smelly.

B. *Gasp* Her momma? BYW. You know you wrong for talking about that girl and her momma like that.
by tickedandtied January 17, 2016
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