I remember browsing through Wikipedia one day, and coming across an article defining surprise-based humour. The article had a very specific scientific name, which doesn't have the actual word "surprise" in it.
To give an example of this kind humour, consider the following sentence:
"I have the body of a 20 years old model, it really takes a lot of space in my freezer."
I'd like to know the actual name of that kind of humour, and particular the link to the long gone Wikipedia article regarding it.