I don't know what to tell you 

A phrase used to tell another person to politely say, "I have no interest in continuing this conversation or listening to you complain." In its hardly ever used long form, it would be used as, "I don't know what to tell you to get you to shut up." Extensively used when people present you with a problem, you offer advice to them on viable solutions, but they come up with excuses why they can't follow your advice.

Person A; "complain, complain, complain. My car broke and I can't get to work now. And boss says he'll fire me if I miss another day!"
Person B; "Take the bus."
Person A; "There's no bus route within a quarter mile, and my feet hurt so much."
Person B; "Take a cab."
Person A; "I can't afford a cab with these car repair bills!"
Person B; "I don't know what to tell you."

I don't know what to tell you by Edward C. Microwagious IV May 31, 2010

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

you don't know your ass from a hole in the ground 

Figure of meaning that someone doesn't know what they're doing.

You don't know your ass from a hole in the ground.

you don't know your ass from a hole in the ground by Jayrod64* November 25, 2016

I don't know 

An answer when you have no idea what the answer is, yet teachers say it's not a valid answer

"Jimmy, what's 2+2?"
"I don't know teacher"
"YES THE FUCK YOU DO I JUST TAUGHT YOU IT!!!"

I don't know by IKNOU March 5, 2019

Gregory, do you see that small vent on the floor? Have you heard Among Us, Gregory? You need to vent. I know it will be hard for you to be sus but I know you can do it Gregory. 

AMONG US

Freddy: Gregory, do you see that small vent on the floor? Have you heard Among Us, Gregory? You need to vent. I know it will be hard for you to be sus but I know you can do it Gregory.

Gregory, do you see that small vent on the floor? Have you heard Among Us, Gregory? You need to vent. I know it will be hard for you to be sus but I know you can do it Gregory. by SUS SUS SUS SUS SUS SUS SUS January 26, 2022

Ya dun know 

Just a generally way of biggin sumin up or agreein wit sumin

rudeboy1:You know that Jezabel Laura
rudeboy2:yeh
rudeboy1: shes a sket.
rudeboy2: ya dun know!

Ya dun know by thisaintrealymyname March 6, 2009

I know, right? 

This is a recently popular expression of agreement that carries a subtext. It is more than agreement with an idea (observation, opinion); it is a friendly assertion that the speaker has already had the same idea–as in, "yeah, I know"–but it goes further: it seeks validation for the speaker's claim of precedence, from the very person whose claim he's jumping. The subtext might be "Oh, you took my idea; you should be agreeing with ME, not vice versa."

Student: I couldn't pay attention to the lecture because of that ball of sweat hanging from the professor's nose.

Classmate: I KNOW, right?

I know, right? by justcary December 5, 2010