The "joke" is that it has nothing to do with the chicken, which defies the expectations set for a regular joke. The act of "crossing the road" serves to get to

The "joke" is that it has nothing to do with the chicken, which defies the expectations set for a regular joke. The act of "crossing the road" serves to get to the other side of the road. It's anti-humor: https://en.wikipedia.org/wiki/Why_did_the_chicken_cross_the_road%3F https://en.wikipedia.org/wiki/Why_did_the_chicken_cross_the_...