I know you. 

you have a deeper understanding who this person is deep down. You know all their flaws and all their perfections. Everything they embody.

Her: How do you know

Him: I know you.

I know you. by Anon9011 June 12, 2024

I know you are but what am I 

I was a kid in the 60's.. This phrase was not used by older sophisticated persons.. It was simply a juvenile response to juvenile name calling.. Some dumb kid would say: "You're Stupid" the simple and quick response would be "I know you are but what am I".. Sometimes (probably when first used) a good come back to one who was truly stupid, because it confounds them, confuses them.. "Uh uh uh, um, you're stupid?"

In actuallity, the phrase would go back and forth, several times.. "You're stupid", "I know you are but what am I" "You're dumb", "I know you are but what am I".. "What a jerk", "I know you are but what am I", "Jerk", "I know you are but what am I"...

Just a juvenile thing.. Used so often though (way back when) that til this day, I use the phrase in response to good compliments.. Most people my age, or close too, enjoy and laugh :)

Example: "You're cute" my response "I know you are but what am I" :)

I know you are but what am I by iBilly September 30, 2013

I know you ain't talking 

When someone is trying to roast you but he did something lamer than you.

-DAMN, your haircut is so ugly!
-BITCH! I know you ain't talking with that shitty ass fade.

I know you ain't talking by magicthanos March 22, 2021

I know you are, but what am I? 

It's quite simply the most retarded comeback someone makes when they've completely lost the argument. This statement signifies that the argument has gone to a completely immature level. Below is a hardcore argument starting with the immature statement :)

Person 1: I know you are, but what am I?

Person 2: Good question. What are you?

Person 1: Wow, you're so dumb, you don't even know what I am?

Person 2: You're so dumb, you can't even answer my question.

Person 1: I don't answer stupid questions. Sorry.

Person 2: Then you shouldn't have made your first one.

I know you are, but what am I? by Searingwolfe July 13, 2011

I know you want to

Used as a sarcastic response to someone saying "Fuck you"

Rando: Fuck you!
Me: I know you want to.

Rando: 😤

I know you want to by Bannter April 12, 2021

I know you not laughing 

The 5 words of doom you WILL hear if someone catches you laughing at the wrong.

Person 1: “Cole ugly as shit, Cole fat and broke,”
Person 2: *Laughing his ass off*
Cole: Bitch, I know you not laughing?

I know you not laughing by Heisenbergpoop January 6, 2022

i know you lyin

Its like I cant believe that. sort of like "stop lying!" or "get out of here!"

Pennny: hey girl, did you hear Kiesha was pregnant
Dee: Bitch! I know you lyin!
Penny: naw girl she showed me a picture of her ultrasound.

i know you lyin by MJ_lit February 14, 2017