Bike and Duck

Alright, listen up, buttercup. This "joke" is what we call anti-humor. You expect a real punchline, right? Something funny? Nope. It just points out a similarity between a bike and a duck (handlebars), then ruins it by saying the duck doesn't have one. It's supposed to be so bad it's funny, but you probably didn't get it because you are also pretty bad.