Keffen

Now synonymous with high-end fashion due to the renown South African fashion designer Michele Keffen. The Keffen brand predominantly features evening wear worn on the world stage by
the rich and famous, but also includes perfume, wedding gowns and jewellery.

Who's she wearing? "It's a KEFFEN!" ; What is that perfume? "It's by KEFFEN".

Keffen by Fiona Merchant March 5, 2008

Keffner

Having no desire to speak to other humans so you carry around a pencil and piece of blank paper and make it look as if its important.

Jimmy: Hey Chuck, what are you doing?
Chuck: I have this really important paper to make copies of.
Jimmy: Ok see you later.
Chuck:(to himself) Yes. Another day of pulling a Keffner.

Keffner by daringstudent April 7, 2010

Keffy 

n. - the expelled sludge resulting from a clothes hanger abortion

She forgot to wipe the keffy off of her shoes after taking care of business.

Someone left their keffy all over the bathroom floor!

Keffy by JDizzle85 July 13, 2014

Keffing 

*British* (participle), verb: to kef
A rather hard slap to the back of the neck.

NOTE: Does not mean, nor does it imply masturbation.

Dude 1: HOLY FUCK, JUSTIN BIEBER!
Dude 2: You deserve a mighty good keffing.

Keffing by Fizzle12345671 February 18, 2011

Keffen

Dutch origin literally meaning 'bark of a dog'. Dutch slang for lighting up a 'splif' (cigarette filled with marijuana).

His cough sounded like a keffen

He drew on the keffen and passed it to his friend

Keffen by hannay March 1, 2007

keffing 

A new word on the streets meaning masturbation over ones own faeces to intoxication...

Boca was keffing over his mother.

keffing by NuKeZ December 10, 2004

Keffin 

A nickname for your boyfriend or friend who is named Kevin when he is ignoble, or in Swedish "keff".

Keffin don't do that!

Keffin by Girls/girls/boys October 14, 2018