Skip to main content
Dictionary
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
Browse
Add a Definition
User Settings
Definitions by farther jack
bum knuckle
Share definition
Flag
The
lower
part
of the spine, the
coccyx
.
I
slipped
on the ice and landed on my
bum
knuckle
.
bum knuckle
by
farther jack
June 14, 2010