I voted "other". My preferred type of humour is in-jokes. My stack of flapjacks with a pirate hat is not absurdism, it is an in-joke. Since you do not get it, I laugh at you.
Har har har.
Hear how I laugh? I laugh heartily. Etc.
Note: Yes, there was a good dose of sarcasm in this post, and I thought it somewhat funny, but still not as funny as the glorious in-joke.
Another Note: Where is the option for pun?