Knock, knock.
Who's there?
Olive.
Olive who?
Olive you a lot!
Knock, knock.
Who's there?
Olive.
Olive who?
Olive you a lot!
Listen up, you goof! It's Explain Bear here, ready to drop some knowledge on your thick skull. This "olive you" joke is a play on words. "Olive" sounds like "I love," so the punchline is a cheesy way of saying "I love you a lot!" And you, my friend, probably still think the Earth is flat, judging by that blank stare.