I Know, Right? 

A familiar simultaneous agreement to confirm an unsaid /said truth. A verbal affirmation to a mutual thought experienced by 2 people.

The origins date back to 2009 when Snookie from Jersey Shore caught her bestie in a lie and responded to JWow’s comment “Ryder is Biatch!”by saying . . . "I know, Right?!”

I Know, Right? by STL Suzanne April 17, 2012

the left hand doesn't know what the left hand is doing 

You know the expression "the left hand doesn't know what the right hand is doing"? Meaning, usually, two arms of a larger entity (two departments of a major corporation, for example) aren't communicating well.

"The left hand doesn't know what the left hand is doing" means that things are so completely fucked up that they don't even know what they themselves are doing.

I can't get my healthcare provider to acknowledge that I've already paid them using the debit card issued by the very same healthcare provider. The left hand doesn't know what the left hand is doing.

the left hand doesn't know what the left hand is doing by smartwatermelon September 14, 2010

you don't know jack 

An extremely popular video trivia game where the categories are outrageous, the questions are hilarious and the host makes fun of you when you're wrong! Everyone I know goes crazy for these games.

Have you played today's Daily DisOrDat game on the You Don't Know Jack Website?
It's called:
Spank Me! Spank Me Per the Geneva Convention!
Me DisOrDat you long time.
And it tests your knowledge of two very important topics!

you don't know jack by Marcy33 December 27, 2006

Nice to know 

It's a nicer way of saying ''I don't care''

Example 1 :
Sasha : I Have This New Amazzingg Boyfriend
Emily: Nice To Know.

Example 2:

Elli: Today Is A Great Day For Me, I'm Having The Best Luck I've Ever Had
Brandy: Nice To Know.

Example 3 & Last One :

Jordan: I Love Her SOO Much.
Caitlyn: Nice To Know. I Wish You Guys The Best.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Nice to know by Kayla Crowder August 21, 2013

I know it like the back of my ass

phrase.
refers to an unknown area. the opposite of the common phrase "i know it like the back of my hand". Originates from the fact that most people (unless they are porn actors/models) are quite unfamiliar with the backs of their asses.

Joey: oh look that chick lives in Ismay, Montana. I know that place like the back of my hand. I'll get laid for sure!

Tommy: shit, I know it like the back of my ass.
(walks away defeated...)

I know it like the back of my ass by RedDan69 February 21, 2011

you know what i am saying? 

Do you understand what I said?

Hey, bro, you know what i am saying?

you know what i am saying? by theeternalsmile November 26, 2013

You Know Who 

a pronoun used to say something about your crush without saying their real name

Raul: Guess who's behind you.
Hugo:Who?
Raul: jasmi-
Hugo: Say "You Know Who" you moron!
Raul: k...

You Know Who by dark_avenger877 March 21, 2019