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

Hey, well you know... 

What you say when you don't wanna lie or tell the truth

Mike: Yo I seen you with Brooke a few times, what you do?
Johnny: Just chill at her house
Mike: and...
Johnny: Hey, well you know...

Hey, well you know... by Sammyjose January 13, 2010

i’ll let you know 

When someone is never gonna tell you shit! Answer is typically a no!

A way to avoid an answer!

Coworker: You coming to the party tomorrow?

Me: I’ll let you know!

i’ll let you know by I know how to speak November 5, 2017

We don’t know nobody

A slang term :

A technical description : meaning something along the lines of, we/I don’t know.

More slang based : It can also be used in the context that you or someone does something crazy / cool

The term was founded in popular streamer Quackity’s Twitter description. The term was originally “I don’t know nobody” but fans quickly adopted the term changing the ‘I’ to ‘we’.

Wilbur Soot: *places bedrock on a flower garden*

Tommyinnit places a sign saying “no one asked” on the bedrock

All: YOOOOOOO
Wilbur soot runs away shouting “honestly, we don’t know nobody”
terraforming the moon in Minecraft - Wilbur Soot on YouTube

We don’t know nobody by haybalelady April 11, 2021

You know the vibe but do the vibe know you

You know the vibe but do the vibe know you is from popular nyc Vlog youtuber and gamer (justfanum) he released merch saying “yktvbdtvky” and you know the vibe but do the vibe know you.

“Yurrr wassup lil blood you know the vibe but do the vibe know youuuu?”

“I know the vibes and they sure know me”

You know the vibe but do the vibe know you by Onsomeshitletavya May 13, 2019

you know my body 

- you know my vibes/you know the way i roll

look i won on fortnite, you know my body

you know my body by emilyluvstoes69 June 17, 2020

you know what fuck you 

the best way to end a conversation about a conflict or something stupid.

guy1: A tomato is a fruit not a vegetable.
guy2: No its a vegetable!
guy1: No, it's a fruit. see it says that a tomato is in the fruit family in Websters Dictionary!
guy2: You know what fuck you!

you know what fuck you by man with the flow February 9, 2006