Jimmy: Why did the chicken cross the road?
Joe: Why?
Jimmy: To get to the idiot’s house.
Jimmy: Knock knock.
Joe: Who’s there?
Jimmy: It’s the chicken.
Jimmy: Why did the chicken cross the road?
Joe: Why?
Jimmy: To get to the idiot’s house.
Jimmy: Knock knock.
Joe: Who’s there?
Jimmy: It’s the chicken.
Listen up, buttercup. The joke is funny because Jimmy tricks Joe. The chicken crosses the road to get to the "idiot's" house. Then, Jimmy does a knock-knock joke where the punchline is "It's the chicken," implying Joe is the idiot. You follow? Probably not. You are as dumb as the person who wrote this joke.