I know, you know 

Used to describe a situation where you and someone else are aware of the mistake that a 3rd person is making. For this to be an "I know, you know." the 3rd person should be blissfully unaware of the situation.

"Hasn't Yoshi twigged that bird over there is a shemale?"

"I know, you know."

I know, you know by Scotsdave December 2, 2004

i know, you know, lee know 

basically a goated phrase in the STAY fandom for the StrayKids member lee know which is a play on his stage name.

it's also said in the song JJAM.

Person 1: Did you know that you should stream Chk Chk Boom by StrayKids?
Person 2: I know. In fact, I know, you know, Lee Know. Anyways stan SKZ for clear skin.

i know, you know, lee know by anonymous February 28, 2025

you know, i know 

When you say this line with another person, it's 100% certain that you both are inlove with each other.

you know, i know

jimin: you know
yoongi: i know

In conlusion, yoonmin married.

you know, i know by yoonmignon May 29, 2020

you know that i know that you know that i know 

When you and/or your friend type something in a group chat that is related to something only you two know so you send the you know that i know that you know that i know and confuses everyone else

Friend 1: has crush on John

*in le group chat*
Friend 1: why the hell is John's name in there
Friend 2: you know that i know that you know that i know
Friend 1: ahh yes
Everyone else: i am confusion

you know that i know that you know that i know by RapoloMan January 10, 2020

you know how i know you're gay? 

1- The preferred method of asking someone if they are aware of the signs and tell-tale indications that make another aware of the person in question's homosexuality. This phrase was made famous in the movie, 'The 40-Year Old Virgin'.

PAUL: "You know how I know you're gay?"
GREG: "How?"
PAUL: "Because you have a triangle rainbow bumper sticker on your car that says, 'I like balls in my face.'"
GREG: "That's gay!?"

you know how i know you're gay? by PopFreeMonkey March 2, 2007

you know, i know 

Yoonmin moment of the CENTURY!

All this is no coincidence

Just, just, by my feeling

The whole world is different from yesterday

Just, just, with your joy

When you called me

I became your flower

As if we were waiting

We bloom until we ache

Maybe it’s the providence of the universe

It just had to be that

You know, I know

You are me, I am you

you know, i know by Seesaws of serendipity February 15, 2020

i know you know 

1. Phrase used when someone recieves a compliment & is confident that it is a well known fact.

2. Used when someone is in agreement with what someone else has said, and wants to give props or show mutual agreement.

1. Guy: "Yo sweatheart. That's a lil' fatty you got rite there"
Female: "I know you know."

2. Female: "Apple bottoms make them jeans that be fittin."
Female: "Girl...I know you know"

i know you know by Mizz Phatz June 11, 2008