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.

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!

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.

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.

bk

slang term used primarily in Southern California, meaning "buzz kill".

that dumb bitch dropped the bong... maaajor BK.

bk

also stands for butt kissing while in the workplace

That guys nickname is bk.

bk

Nick name for Kyle Niggerson.
BK stands for Black Kyle or Brooklyn where he be reppin'. Also, Burger King, where he gets his free dinner of the floor.

yo nigga! im BK from bk and i eat at bk. holla. give me a favor bitch.