bk stands for a buzkill or someone or something that kills the fun. BK's are usually found making awkward interjections in a conversation that makes everyone in it want to leave.
kevin-"dude last nights party was so funny"

BK Yona-" oh yeah totally man, thanks for inviting me, god i have no friends"

kevin-".... what a BK!!!!!"
by Da bitch takumi November 8, 2011
Get the BK mug.
Bad Kid, a bad kid is someone who isnt good at there respective postion(s) in life. such as xbox or athletics
Wow these kids are BK's. Hey man your such a BK just give up.
by Hasselhoffman February 15, 2009
Get the BK mug.
A noob or novice that has no skill in the said game. (Bad-kid)
That kid doesent even know how to play! what a BK!
by Scott P, Jake L February 20, 2009
Get the BK mug.
Having a series of misfortunate events happen to you in a brief period of time.

A combination of dance moves in which one thrusts his/her fists in an alternating pattern to the beat of a song, preferably to electronic music.

A popular fast food chain
After we went out I was BKed; got a speeding ticket, received a parking ticket, lost my wallet, and cracked the screen of my cellphone all before midnight.

Girl: "Yo did I see you at at Kitty O'shea's last night?"
Guy: "Maybe"
Girl: "Yeah I saw you on the dance floor doing the BK"

Guy 1: "Hey have you tried the new BK breakfast bowl at Burger King?"
Guy 2: "Yea man, that shit is bomb!"
by choopes molson December 17, 2010
Get the BK mug.
A BK is: A "Bad Kid". This is an insult, most commonly used in online gaming. Where "Bad" is a reference to one's skill and not to behavior, and "Kid" is referring to the level of one's maturity.
Franky aka "Jam" is a BK.
by Sm0kescreen February 10, 2007
Get the BK mug.
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 9, 2009
Get the BK mug.
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
Get the BK mug.