Can someone explain the joke at the end of Guardians of the Galaxy 3?

What about it?

The whole thing about mowing someone’s lawn. I don’t get it.

I don't get it

I don't get it

Why is the "Japan guy" mad? Is he stupid?

i understand the OJ Simpson part but who are the other two and what did they do?

I don't get this.

I don't get it, is it because that how Jonathan majors dress

Am I missing something here…

What does this mean?

Am I missing something?

Can someone help me?