Bk 

1. Burger King, a fast food restaurant chain.

2. Blood killer, aka crip, in reference to the two gang's rivalry

3. Bad kid, an insulting term for an unskilled player in video games, especially Halo. Similar to noob

1. Lets go eat at the BK

2. I'm Bk all day

3. Stupid Bks were dragging our team down.

Bk by Colder August 25, 2011

BK 

A town, known as Brookings, SD.

BK is one happening place during the school year.

BK by Dianeb October 6, 2006

BK 

Big Knockers- Big boobs

Our band

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

BK 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?

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."

BK 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.

BK by robin December 1, 2003

bk 

bk, meaning 'back' is a word used online a lot. when you leave for a second and are back, you might say 'bk.'

girl: hold on one sec, i need to get the phone
boy: ok no prob
girl: bk, sorry it was my friend
boy: it's ok

bk by debbie April 26, 2005