Rhymenoceros

Okay, listen up, numbskull. It's a play on words. See, rappers like to rhyme, right? And a rhinoceros is a real animal with a big horn on its face. So, "Rhymenoceros" sounds like "rhinoceros" but with "rhyme" in it, because rappers rhyme, get it? It's funny because it's stupid. And you my friend are not smart enough to figure it out yourself.