kcf 

a math shortcut fo dividing fractions
Keep-first fraction
Change-the sign from division to multiplication
Flip-the last fraction

teacher: how do we divide fractions?
students: we use KCF

kcf by smart-@$$ December 25, 2007

KCF 

short for Keychain Friend

"Karolina is my KCF"

KCF by METRObliss August 16, 2009

kcf shredders 

best fast food product known to man. Consists of shredded iceberg lettuce and cups of mayonase. Proctor and Wall of Styrofoam love kcf shredders.

Get the shredd in your headd

kcf shredders by jordan December 8, 2003

kcfraud 

a really gay name

yo u heard about kcfraud, o that gay dude yea

kcfraud by jimmynortron August 16, 2021