I explained Greer to an elderly lady friend of mine this morning. It went approximately like this...
Me: I'm excited. Today I'm gonna be listening in on a court case with this crazy guy who sued, tried to sue, Taylor Swift a bunch of times, and Ariana Grande, and...
Her: Why, because they wouldn't pay attention to him?
Me: Yes!
Her: Oh, you're serious?
Me: Yes! And he wrote and self-published a book about it called "Why I Sued Taylor Swift"!
Her: Wow!
Me: Yeah, he's always suing people. He's suing this website with a messageboard I post on, for making fun of him. And he wants to legalize brothels everywhere.
Her: Wow!
I went into a little more detail about his songs that the famous people wouldn't take from him, and how the KF suit has been going on for like four years, and his facial disability, and she said "He may have a facial disability but it sounds like he has a" [makes loopy gesture around the head] "head thing, a social disability." I agreed.
Pretty easy to share the highlights, even with someone whose entire online experience is cat pictures and Facebook games.

♂