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*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
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She's funny, creative and a loyal friend. She's naturally quiet but loves to have conversation, yet not a people person. In other words, she's a human contradiction. She loves strongly and hardly ever gives up on anyone or ever holds a grudge. Very mature, though, a child at heart. Very caring and understanding. Will never judge you based on your flaws unless absolutely necessary. She's beautiful inside out and is a rare gem just like her name!
Keffian is such a beautiful name.
keffian by Mickey_J60 July 25, 2018
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
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
Add a tablespoon of jarlic to two teaspoons of butter and spread it in bread to make garlic bread
Jarlic by YSAC fanboy June 6, 2020
Word of the Day on May 30, 2026
An armpit enthusiast — typically of the scent, appearance, and touch of hairy underarms.
That dude’s such a pitpig, I have to wear deodorant to keep him at bay.
Pitpig by wimbledon May 28, 2026
Word of the Day on May 29, 2026