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
From redline - Pronunciation: 'red-'lIn Function : verb : redline, to redline, also redlining; to engage in sexual intercourse at an extremely rapid tempo. Origin in redline : a recommended safety limit; the fastest, farthest, or highest point or degree considered safe.
Text fits
Save
Cancel