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!!!!!"
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
by the manmeister June 21, 2007
by BusyBoy April 21, 2003
Bad Kid, a bad kid is someone who isnt good at there respective postion(s) in life. such as xbox or athletics
by Hasselhoffman February 15, 2009
by Scott P, Jake L February 20, 2009
Buzz-Kill - Sometimes a thing but most often a person that kills your ecstasy buzz in 1986. Any Debbie Downer during times of inebriation.
by Kdub83 May 22, 2014