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 Sexiest Man Alive ver2
Retardium
Share definition
Flag
A
rare
earth
metal that can only be found on any planet other than
Earth
.
Joe
Mom
mined
some Retardium.
Retardium
by
Sexiest Man Alive ver2
May 12, 2021