Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Do Not Sell 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 saiko16
npsi
Share definition
Flag
Nerd
per
square
inch
Once a
year
, San Diego reaches the highest npsi
density
in the
world
.
npsi
by
saiko16
June 12, 2026
0
0
Get merch