Confused and amused! Can anyone tell me more unexpected names of Subreddits?

I’ve had Reddit a while but just recently started using it more. A Subreddit I follow is about owls, but is called r/Superbowl - I love this wordplay and was wondering if there are any other confusingly-named Subreddits like this? (I have heard that r/Trees is not about oaks and sycamores, which made me chuckle, too!)