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
by Gus Brucker March 06, 2005

by Arby February 08, 2003

KB! is short for KaBOOM in the glock world. Glock has defects which make them fail and hurt the shooter. Google Glock Failures.
by MN_Jack76 October 03, 2008

by K-boy August 02, 2016

A shortened, text-version of "keyboard."
by ignoremeplzthanks November 10, 2019

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
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
'No thanks.'
'Omg you like totally kb'd me
2) You start talking to someone and they ignore you
Aaah! KB
by BettyTom October 31, 2007
