antijoke means A sentence or story that subverts the expectation of a joke, often by being deliberately unfunny or surreal.
Etymology
From anti- + joke.
noun
- A sentence or story that subverts the expectation of a joke, often by being deliberately unfunny or surreal.“Thank Christ for Carlton. My secret. My lifeline. The inventor of the antijoke. I kid you not. He postulated a category of things that don't make you laugh which he called the antijoke.”