Knock, knock.
Who's there?
Utah.
Utah who?
You're talking to me.
Listen up, buttercup. This joke is all about a play on words, see? The setup is your run-of-the-mill knock-knock deal. But the punchline? It uses "Utah" to sound like "You're talking to." Get it? It's a dad joke. And you fell for it. Haha. Bet you think a balanced diet is a beer in each hand, huh?