Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Coined by firearms journalist Dean Speir, kB! is shorthand for "kaBOOM!" Usage: Verb A situation where a firearm has a catastrophic failure causing it to explode. The situation typically arises from a ruptured bullet casing, but may also be caused by a barrel obstruction, or a having too much powder in a cartridge. While a kB! will probably render the firearm inoperable, and unsafe to use, the firearm should contain much of the explosion.
Text fits
Save
Cancel