Kaboom, A massive gun malfunction that happens when a round is fired: this causes the weapon to blow up and may injure the shooter. This usually happens to old guns or to those who reload their ammo improperly
K-Rock was cappin down some bloods when his gat kB'd and blew off his trigger finger.
by Gus Brucker March 7, 2005
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To kick, then ban one from a community.
<Comprox> !kb Silent_But_Violent Omg pwnh4x
by Arby February 9, 2003
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KB! is short for KaBOOM in the glock world. Glock has defects which make them fail and hurt the shooter. Google Glock Failures.
I was firing my Glock and it blew my finger off! Thanks Glock for the KB!
by MN_Jack76 August 8, 2008
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korean broadcasting system; The first broadcasting station in republic of korea.
He works in KBS news station.
by K-boy March 10, 2016
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A shortened, text-version of "keyboard."
"Hey, where did you go?"

"Sorry, I spilled baked beans all over my kb"
by ignoremeplzthanks November 11, 2019
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1)Shortened for Knock-back. When someone asks another to have sex with them but they reject the asker.

2)Now commonly used in the Uk as rejected
1) 'Hey baby wanna shag?'
'No thanks.'
'Omg you like totally kb'd me

2) You start talking to someone and they ignore you
Aaah! KB
by BettyTom October 5, 2007
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