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
1) The facial expression made by a bassist while playing a complex, tight groove. Caused by the brain's processing power being diverted to the hands, leaving the facial nerves uncontrolled and free to create various drunken, blank, derpy expressions. The bassist may be unaware he is doing it. Some physicians have speculated that bassists' brains may not be capable of controlling more than one region of the body at a time. This explains why they sleep with the ugly groupies. 2) A facial expression that only looks cute on Tal Wilkenfeld.
Text fits
Save
Cancel