This is very random but I just watched that one Mother's Day episode (The Mothers) and noticed that Banana Joe's Mother's Day card is literally an image of a crying clown and the phrase "Superest mom" on it. I spent my childhood thinking it was just a joke or something but we already know his mother is able to either manipulating time and space through her paintings or just predicting future with it. So I came up with this crazy idea that she is related to the Creepy Clown and that maybe Banana Family has much more power that we thought, Idk it just feels right.
I haven't seen the new seasons yet so I don't know if there's more lore about it tho.
That's literally just that lol.
Edit: Also Richard also has a picture of him as a crying clown but I don't know if that could mean something or be related but idk, maybe the dumbest ones know it all.