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1 definition by 313471F3

 
1.
Kef
a firm slap to the back of the neck, usually given when a buddy says or does something stupid or pointless, also can be used to describe someone as a "kef"
oi look at this guy, he needs to be keffed.

god that kid is such a kef.
by 313471F3 May 13, 2008
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