Koobface 

A Facebook worm.

An insult to anyone named "Koob"

I just got fucked over by koobface.

Fuck you koob, ya koobfaced fuck.

Koobface by Billcheese1 February 4, 2010

knobface 

An insult used to descirbe someone who is being a complete chump, but still remains slightly amusing.

Look at John, he is being a knobface.
Yes a complete knobface.

knobface by Jellybaby June 11, 2007

koonface 

One whose face looks like their koon. To understand this word one must define koon. koon is translated by the urban dictionary as ass in persian.

Why does your face look like your koon! Koonface

Why are you such a koonface.

koonface by P KUSH February 17, 2010