look up any word, like lemonparty:
 
29.
bk
A word used by angry halo players who are mad at people that purposely try to ruin the game. The players that use this term try to make 1-9128128 new slang terms daily because they thinks it makes them cool.
You are such a bk for shooting me in the back and getting that free betrayl
by 1999566435 August 14, 2010
 
30.
BK
The abbreviation for "bad kid". This term is applied to one who is bad at anything at all. From video games to sports, you can be called a one at any time, anywhere, and while attempting any activity.
Did you really miss that snipe? WHAT A BK!
by Thelovelyneighbor October 08, 2009
 
31.
BK
A fist bump/fist pound. Usually said in a mocking tone in order to highlight the rubish way that meat-head males continuously fist pound for no reason.
"BK me one after that awesome ace!"
by mmmwwwahahniu June 30, 2009
 
32.
bk
buzz kill
"That's so stupid! Don't do that!"
"SUCK IT, BK!"
by hannahjj June 07, 2009
 
33.
BK
An acronym for Bad Kid. This has no relation to being a BA or a BAMF. This is the person that gets on your nerves and you just hate.
Go to hell you're such a BK.
by 2Fresh4U January 07, 2008
 
34.
bk
an extremely bad kid. Usually used in the game of halo
wow ur such a bk! u can't even BXR n00b
by nish licker June 05, 2007
 
35.
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 02, 2014