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Don't fucking know

Not knowing something and upset that the person that is asking you is too lazy to look it up there selves
yahoo:

Chickenman1: What is the speed on that new AMD Proc?
Goatman: DFK you look it up
by Sethwm2 July 20, 2006
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DFK is an abbreviation that stands for Dani Fucking Kind. Dani Fucking Kind (Dani Kind) is a Canadian actress best known for her roles in the tv shows Wynonna Earp and Workin’ Moms. The nickname Dani Fucking Kind (DFK) was given to her by the fans of Wynonna Earp after she started portraying the role of Mercedes Gardner.
I can’t wait to see DFK in the new episode of Wynonna Earp!
by Clexaftwayhaught April 19, 2019
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A new dubstep DJ in London. Formerly known as Caspa he is now DFK because of problems with people having the same name. He is the best DJ ever!
Person 1: Did you see DFK DJ last night?
Person 2: Of course I did! He was awesome!
by rawrz <3 May 18, 2011
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Dirty Fairfield Kids

1.)Dumbasses who are "gnar" and whatnot. 2.)Group of kids who hangout at the Fairfield Skatepark. They like to be dirty and dont really give a fuck.
3.) They're racist.
4.)Thy say they're non-conformists but really they conform to be in DFK.
5.) They drink Carlo Rossi, Pabst Beer, and Mickeys.
6.) "Gnar-Dog-Shred-Kill"
Guy 1: "Dude! Did you see that gnar dude?"
Guy 2: "Yeuh! He's in DFK"
by brainwashed90 April 27, 2009
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DFK = DanceFloorKilla

Used in dnb chatrooms. If somebody thinks a drum and bass tune sounds heavy / brutal then the person says its a dfk.
OMG this is a fuckin heavy tuuuuune.DFK DFK DFK!!!!!!!!!!
by L-I-M November 25, 2006
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