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
Totally buried (by flab) abdominal muscles in the configuration of a back pack. The exact opposite of a “six pack,” the definition of which is: “Well defined abdominal muscles in the configuration of a six pack of canned drinks.” A uni pack could be described as: “Undefined abdominal muscles in the configuration of a two-liter bottle of Coca Cola carried in a school back pack that is already full of homework.” Used by Jillian Michaels on 'Rachael Ray' 11/15/2011.
Text fits
Save
Cancel