Skip to main content
Dictionary
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Do Not Sell or Share 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 FIFA 20> Madden NFL 2005
KSI
Share definition
Flag
A person
with a big
forehead
WOW
! That KSI over there has one big
forehead
, bigger than Mount
Everest
KSI
by
FIFA 20> Madden NFL 2005
June 25, 2020
Get the
KSI
mug.
Get the mug.