Popular Fish

Okay, listen up, you absolute genius. You're the type of person who thinks a 'sea' is just a big puddle. You probably also believe that 'starfish' are, like, actual fish. Newsflash, they're not! They're echinoderms, which is probably a word you can't even pronounce, let alone understand. This "joke" works because it makes you think of a fish, but then it's a star fish, haha! Get it? It's like a word switcheroo! It's called a pun, and it's way too sophisticated for your level, but I'm doing my best here.