If I was trying to explain humor to an alien, I would say it's a pleasurable sensation created by the resolution of ambiguity or uncertainty in the communications between two or more people. This is achieved by performing similar mental operations and reaching the same result as each other.
So typically, you say something, and someone understands that it is not serious, and they laugh at the point at which they realize you two understand each other.
Your style of humor is more evolved, in that it adds an additional step, where first they think you are not serious, and then they understand you are, and if they get it, they laugh because they have completed the path to a shared understanding. It may not be appreciated so much, because since the journey is more difficult, the listener may infer that you are trying to put down people who are not sufficiently quick witted.