BK

Big Knockers- Big boobs

Our band

Those are some BK. Those are some big knockers bk rocks

by Casey, Cam, Phil May 13, 2005

BK

Code for getting drunk. Originated by teenagers in Southern Ontario to trick parents and to get money for them.

"Hey, Ma. Can I get some money for BK?

by DesPERRYado April 11, 2005

BK

Worst clan on the MMORPG game RuneScape.

"Lol BK got owned by some noob clan again."
"Haha yeah BK couldn't even beat 5 year olds."

by BKSUCKS January 12, 2009

BK

a major league pitcher from Korea who's right handed.
now he's in Boston Red Sox
it also stands for
Bonds killer (Bonds is hitless against Kim)
Bambino killer
Bronx Killer
Bone to be K (He strikes alot)

Hey there goes BK!!
He stikes out Bonds yesterday.

by robin December 1, 2003

BK

Methylone, bk-mdma- "molly", any other cathinone someone tries too pass off as something else.

A term

"Hey, jimmy i got some Molly".
"Jimmy puts on Reagent is really cathinones"

"hey wanna buy some BK" Is really 4-MEC.

by fubarpdx January 2, 2014

BK

Boner Killer

A man or woman who has turned your fully erect penis flaccid

I was gonna have sex with that girl until I saw her misshapen booty, it was such a BK!

by thachingster August 17, 2010

BK

A bad child (aka Bad Kid) that teenagers use when they are too lazy to spell out the word especially when they own their own tablet computers and are typing all the time; also known as BA; anyone who plays games or emails when they should be doing work.

SB is a was such a BK because she emails during class.

by Bobbin99 March 29, 2009