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
A person who does not understand liberal politics but believes that being radically liberal is hip. Typically, moonstoners write nonsensical messages that appear to sound cool. Originates from message board poster "Mother Moonstone", who would paste ultraleft materials on message boards and, when posting on her own, would post misspelled, nonsensical phrases that would sound cool to the uninitiated.
Text fits
Save
Cancel