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 jiffy is a unit of time: 0.0000000000033357 seconds or (3.3357x10^-11) or (3.3357 times 10 to the power of minus 11). So named for the length it takes for light to travel 1 centimetre in a vaccum.
Text fits
Save
Cancel