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
Browse
Add a Definition
User Settings
Definitions by Hedgehog111
ON99
Share definition
Flag
A
Dumbass
, fool or whoever done something stupid and we
call
them ON99(on-
gill
-gill).
John
'
s
action were totally on99.
A: Why you think
Ghost
exist Tony ?
B: You are on99 for asking that kind of stuff.
ON99
by
Hedgehog111
April 22, 2016
0
0
Get merch