I Don't Know, Man, It's Just Like...I Don't Know, Ya Know? 

The perfect thing to say when you haven't been listening to a conversation that you started. This works for an answer to virtually any question. Perfect for answering if you can't hear the speaker in a crowded, loud room.

Friend: "So how've you been lately? Any better?"
You: "WHAT?"
Friend: "I said, HOW'VE YOU BEEN?"
You: (panicking) "Oh, uh...I don't know, man, it's just like...I don't know, ya know?"
Friend: "Yeah, totally."

I Don't Know, Man, It's Just Like...I Don't Know, Ya Know? by BFFLUWDTWBBFFLIHOTOP February 23, 2010

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

I don’t know what I’m doing lol

What you can say when you literally dead because of how bored you actually are.

Dude 1: i don’t know what I’m doing lol
Dude 2: cmon let’s go play sum minecraft

I don’t know what I’m doing lol by Ummmmm hi May 14, 2020

I don't know why I have these goggles 

A phrase uttered by those who have given up on life after realizing their existence is meaningless, futile, and possibly fraudulent. Etymology: Aqua Teen Hunger Force episode "Dumber Dolls"

Happy Time Harry: Hey, wiggle jiggle, why you jiggle so much? Is it because he know deep inside you're a fraud? ... What the hell do you need night vision goggles for? You're a hillbilly!

Jiggle Billy: I don't know why I have these goggles ...

I don't know why I have these goggles by Cephiroth May 15, 2010

I don't know about that one chief 

A phrase that is slang for no, normally used when in relation to an activity

Ex.1
Guy 1: aye, pass the bong
Guy 2: I don't know about that one cheif
ex.2
Guy 1: ay bruh, can you pull out?
Guy 2: I don't know about that one chief

I don't know about that one chief by 20$ is 20$ September 18, 2018

You don't know shit about fuck 

An extreme way to invalidate a person's opinion. It's a hardcore dis meant to bring the person it's directed at to complete silence.

Marven: This war is like fucking awesome yo!
Shanaynay: You don't know shit about fuck,asshole.
Marven:....................well damn.

You don't know shit about fuck by Crazyspirit November 8, 2007

you don't know dick

You don't know anything. You don't know what you are talking about. Similar to squat and diddley. There is also a board game and a movie called "You Don't Know Dick" but the saying is considerably older.

If you had to look this up, you don't know dick.

you don't know dick by terrorint March 24, 2016