idefc 

A texting way of saying "I don't even fucking care".

Example:
Lisa: Did you know Miley Cyrus was tweaking in a public restroom?

Sean: idefc so shut up!

idefc by The Lost Wish January 7, 2016

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

idfc 

I don't Fucking care

Used in response to a troll on a message board.

IDFC

idfc by Shane H August 10, 2006

idfca 

I dont fucking care anymore

Dude1: Dood, I just saw your girlfriend with another guy!
Dude2: idfca

idfca by MySpaceWhoreo12384723874 September 28, 2009

idfc 

i don't f***ing care, to be used mainly in online chats or the like, a substitute fore idc (i don't care) used if you're angry or some other emotion that requires use of the f word.

hey man idfc what she said, it's not true.

idfc by Cbasssl October 25, 2006

idec 

idec = I Don't Even Care.

girl: I broke up with my boyfriend *tear*

Guy: idec!

idec by xalexdayx May 8, 2008

IDEFKA 

Short for "I don't even fucking know anymore"

IDEFKA OF THESE SHIT

IDEFKA by MLGgurl69 September 30, 2015