Buzz-Kill - Sometimes a thing but most often a person that kills your ecstasy buzz in 1986. Any Debbie Downer during times of inebriation.
It was a real bk when Laura showed up, she's so fucking needy and all the coke was already gone.
by Kdub83 May 22, 2014
an abbreviation for the newfie, or newfoundland, phrase Best Kind, used to describe how something or someone is 'of the best kind'

used mainly on the computer, as in, when you want to say somethings best kind outload, you do not say the letters bk. you say best kind.
Computer Chat;
Newfie 1: Hey, what do you think of Randy?
Newfie 2: He seems bk sure.

Face-To-Face Talking;
Newfie 1: Hey, what do you think of Randy?
Newfie 2: He seems best kind sure.
by hahaiefwhiuhd January 08, 2011
BK is used all over in the gamer world, refering to the phrase "Bad Kid." It pisses people off on Xbox Live and other systems when called a BK.
Synonyms: Noob, Unexperienced, Suck.
"LAWL! You should just snap your disk, BK."
"lolzzz wow i just raped jordan 1v1...what a BK."
by SH BLAZE January 15, 2008
"Bad Kid" Often used in online video games
Duncan just threw a rock at that car!
What a bk!
by Steven Wing August 30, 2007
Common term used for a man or woman who is on their grind or are known to hustle on a regular basis. Finds its roots with a man named brownwest, known for his relentless hustle and underground dealings.
"This man is on that bK level sh*t."
"If you don't got a name, and you dont know what to say, dont mention bK."
"Moving that brick like bK"

by Hollowtipz February 14, 2007
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
A bad kid. One who lacks leetness. A noob.
Dominic put Nos on his Automatic 94 Civic with 300,000 miles, lol what a bk.
by xJacob December 14, 2006

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