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1.
PKF
PKF stands for a PARTICULAR KIND OF FOOL. These stupid bastards can be most commonly found at conferences. They have nothing to contribute but insist on standing up and grabbing the microphone for 15 minutes and talking about themselves. They confuse asking a question with self publicizing their own pathetic lives. They generally ask three questions all in one go leading to utter confussion or none at all. The result is that the delegates and the pannel want to fucking punch their lamps out and make them eat their own liver.
PKF: Hi my name is Tamsine and I work for a charitable trust for children with no ears and I am absolutely brilliant. In addition did I mention how great I am and that I have lots of qualifications and like skittles!! Hee-Hee (annoying laugh)

Other Delegate to another: That is one hell of a PKF!
by Uncle Badger May 16, 2006
 
2.
PKF
Clan/Tribe Tag for Video Games.
Meaning: Player Killer Faction
Members of The Clan/Tribe:
PKF_*647
PKF_*646

etc.
by [PKF]_*647 August 25, 2004