Definitions by LFJoooooonnnneeeessss

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