Fun Question

I'm currently writing a story about one of the worst teachers on the planet (hopefully, he'll become more humane later). He never really wanted to be a teacher, and he doesn't think very nicely about his students.

And I added a little bit to the story where he's grading pop quizzes, and he gets some really weird responses, because a lot of the students obviously haven't read the book. He's teaching The Great Gatsby.

So I thought this would be a fun little exercise - if you hadn't (or haven't) read The Great Gatsby, hadn't ever heard any discussion about it or anything, what would you think it was about?

I'll start it off with this bit from my story:

" One student had written: 'The Great Gatsby is set in an alternate universe, where gadflies are the top of the food chain, but the ruler gadfly falls in love with a pretty human girl named Melanie.'"

Your turn.