Top definition
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!"
by Gumby January 20, 2003
Get the mug
Get a idfk mug for your papa Bob.
2
The abbreviation and more appropriate way of saying "I don't f**king know"
Wow, Idfk what that was.
by Doctor Piggy June 03, 2016
Get the mug
Get a idfk mug for your friend Sarah.
3
abreviation-i dont fuckin know
girl-do u like me
boy-idfk
girl-crying silently
by jzenna jonas June 17, 2007
Get the mug
Get a idfk mug for your guy Jerry.