@@couragew6260 There are two layers of funny: 1. A common start to a joke is "A man walks into a bar..." and then they say something to the bartender. In this case, the man is walking into an actual metal bar and injuring himself, not entering a building. 2. As Batman was saying this joke, he kicked Joker into a metal bar.
@@couragew6260 he walks into a bar like a bar like a long rod or rigid piece of wood, metal, or similar material, typically used as an obstruction, fastening, or weapon. It's a really really dumb joke.