A phrase that really originated from Mean Girls said by Regina George. This was adapted by the internet, probably 4chan, and has been used when one is speechless and shocked.
Bill: Mary told me she had sex with her brother.
Joe: ...............'The fuck.
Bill: I don't even.
By Lezlie
What Is This I Don't Even
When something is so shocking/meaningless/senseless/retarded/random/etc, that you're left absolutely speechless.
Joe: Let's see what's good on /b/ today...
.......
Joe: What is this i don't even
By Imojean
I Don't Even Curr
An expression used to convey the extent that one does not care about something in a ghetto-like manner, while still remaining white.
Example:
Yvonne: "Hey Erin, you should fake bake sometime. You're so white you're almost transparent."
Erin: "I don't even curr. Tan people can kiss my arse."
By Crystie
I Don't Even Caare!
An expression used when one has nothing else to say. Usually used after an insult.
hitler4EVAR114: Has anyone ever been far as decided to use even go want to do look more like?
inoscopedjfk69: what is this I don't even
By Kylila
I Don't Even Know
A phrase used when one either: (1) Does not know what is going on, (2) does not know what just happened, (3) does not know the answer to a question, (4) or simply would like to break the silence.
Usually, when said phrase is used, it is followed by a near-endless spree of other quotes such as:
1.) Psh, I don't even know.
2.) Aw hail naw.
3.) Aw hail naw, cracka.
4.) Mmm hmmmm!
The phrase "I don't even know" is best used in the classic "I don't even know" speaking tone, which may only be properly "voiced" by either a colossal, Japanese monster, a small cat/kitten, or a constantly hyper-active younger brother.
"Matt, why aren't you talking?"
"Psh, I don't even know!"
By Yvonne
What Is This I Don't Even
A popular cyberspace term and joke phrase that is said when someone else utters something totally stupid or useless/senseless.
Jeff: "Hey, Jake, I just went so far as to take the monkey and what what what are you gonna do about that! Jake look at this! Satan! DEATH TO THE WEIRD!"