Raining Cats and Dogs vs. Hailing Taxis

Hey, listen up, my little clueless friend. This joke is funny because it uses wordplay. You see, when it's "raining cats and dogs," it means it's raining really hard. But the joke makes you think about actual cats and dogs falling from the sky! Then, it says "hailing taxis" is worse. "Hailing" sounds like "hailing," which is frozen rain. It's a play on words! Get it? You probably don't. You are like a rock, dull and dense.