Skip to main content

Dictionary Store Blog World Help Advertise Chat System Status

Do Not Sell My Personal Information Information Collection Notice reCAPTCHA Privacy Terms of Service reCAPTCHA Terms Privacy Policy Accessibility Report a Bug Data Request DMCA

© 1999–2026 Urban Dictionary ®

Words of the Day BrowseAdd a Definition User Settings

Definitions by Captain C9K

c9k

Share definition Flag

Abbreviation for clusterfuck. the '9'
stands for the 9 letters between the 'c' and the 'k'

What a complete c9k.

c9k by Captain C9K September 9, 2003

Get merch