You know what band really sucks?

Sonic Youth.

Now I liked this band when I was younger but they have not aged very well. Their music all sounds the same also and it gets old fast. They are also very lame. Their only good album was the 1985 album Bad Moon Rising.

You know what band really sucks?

yeah i know

said to match by pencil

pencil: yeah i know she was so surprised
match: really?

Know Shaming

''Know Shaming'' is the petty social act of making someone feel smaller or stupid for literally not having known the information someone is telling them. Know shaming can occur in social or academic discourse, but also in interactions around media or celebrity consumption.

A: Have you heard of band XYZ?
B: No I Hav---
A: OMG! How do you not know about them!??!?!? Do you live under a rock?!?!! I knew about them ages ago like before they got popular.... YOU HAVE TO LISTEN TO THEM.
- - -

A: Did you know..
B: No..
A: What OMG! Do you even read? So basically...
B: This is know shaming. How could I know anything about something before I know it?

We Know

This is said in response to something obvious.

Amy: Man I love food.

Jason: We know.

do you know da way

It's a derpy Knuckles meme (from Sonic) that is known as "Uganda Knuckles"

Do you know da way? No you do not know da way.

but did you know that john0512 got a 46 on mathcounts chapter?

John0512 made TST group, one of his many accomplishments.

john: I made TST group
you: but did you know that john0512 got a 46 on mathcounts chapter?
john: :sob:

know what one is about

be aware of the implications of one's actions or of a situation, and of how best to deal with them.

Here's a sentence using "know what one is about":

She was a seasoned negotiator who clearly knew what she was about.