idfka 

I don't fucking know anymore

ME: What are we going to do with out lives?
YOU: idfka

idfka by Niiceeeee April 7, 2016

idfka 

I dont fucking know anymore

Idfka man

idfka by Xen ok January 10, 2016

idkam 

i dont even know anymore

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

idkam by encisnotfabulous January 7, 2010

idfca 

I dont fucking care anymore

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

idfca by MySpaceWhoreo12384723874 September 28, 2009

idkfa 

A cheat code in the iD Software game Doom, which gives you all the weapons in the game, as well as all the keys.

Type idkfa to stock up on those precious BFG cells!

idkfa by ChaoX December 17, 2004

idkfa 

A well-known cheat code for the computer games Doom and Doom 2. Entering the code gives the player all keys, all weapons, and full ammunition. It can be entered an unlimited number of times per level to refill ammo.

The cheat code most likely means:

id = id Software
k = keys
fa = full ammo

I can't believe they left the classic Doom cheat codes like idkfa and iddqd out of Doom 3!

idkfa by MC Mikey July 4, 2011

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