idefk 

I don't even fucking know. This can be used when you just have sheerly not the slightest idea what the answer to a question or problem is.

boy: "Wtf is free running?"
girl: "Oh god. Idefk."
*girl goes on and attempts to explain it.*

idefk by lovesonic April 2, 2010

IDEFK 

I Don't Even Fucking Know.

Usually said when your really do not fucking know.

xD.

AIMPerson1: Dude, where do I stick my penis into her?

AIMPerson2: Bro, IDEFK.

IDEFK by LFJoooooonnnneeeessss November 2, 2008

IDEFK 

Acronym for: I DON"T EVEN FUCKING KNOW
(most of the times said when really frustrated, or over whelmed, or pummeled with questions, that you don't even fucking know the answers to.)

Jacky: "Why hasn't he called you? Do you think your bf is mad at you? Sam, Sam, Sam... whatcha gonna do about it???? HUH?!? I think he's gonna break up with you... what are you gonna do?!?
Sam: "IDEFK!!!!!!!"

IDEFK by Mariah Levine June 2, 2015

idek, idefk 

A variation of idk or idek, which represents a shorthand version of the phrase "I don't even know, I don't even fucking know" Used to express a more profound sense of bewilderment and confusion.

Bob: Dude, what happened last night?
Tom: I have no idea man. idek, idefk.

idek, idefk by BabyLemur August 1, 2008

idfk 

A semi-polite way of admitting that you don't have a clue. Abbreviation for "I don't f***ing know."

Boss:"What's wrong with the coffee machine?"
You:"idfk!"

idfk by Gumby January 20, 2003

idek

an abbreviation for •I don't even know •

via text message:
friend: so when are you gonna ask her out
me: idek!!😂

idek by little missed December 3, 2014

idekam 

i dont even know anymore

dude, my life is so fucked, my girlfriend just dumped me, my grades are horrible... idekam.

idekam by encisnotfabulous January 7, 2010