Skip to main content
Dictionary
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Do Not Sell or Share 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 JM_Justin
RU4
Share definition
Flag
Are you for real
?
Chad: I'm going to
see
that Disney
flick
with my mom.
Brent
: Shwa? RU4???
RU4
by
JM_Justin
June 30, 2009