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

idfk 

The abbreviation and more appropriate way of saying "I don't f**king know"

Wow, Idfk what that was.

idfk by Doctor Piggy June 3, 2016

idfk 

abreviation-i dont fuckin know

girl-do u like me
boy-idfk
girl-crying silently

idfk by jzenna jonas July 16, 2007

Idfk 

I don't fucking know

Idfk why trump is running for president

Idfk by hilltopboy222 October 3, 2016

IDFK 

I don’t fucking know

Idfk
Me neither

IDFK by Meme and scream April 2, 2021

IDFK 

i dont fucking know

someone asks u something: idfk

IDFK by thisispeter......alexanderJK May 16, 2019

idfk 

I'm down to fuck (your) kitty

Person 1: Look at how cute she is I just got her last week
Person 2: idfk

idfk by Hexiro(Your Dad) April 23, 2020