Stand-up comic Mitch Hedberg (1968-2005) told jokes that often have metacognitive principles of Category Theory as underpinnings: identity, regrouping, inversion, transformation, renaming, etc. Some samples from [1]:

• I'd like to make a vending machine that sells vending machines. It'd have to be real f*#%ing big!
• My belt holds up my pants and my pants have belt loops that hold up the belt. What the f*#%'s really going on down there? Who is the real hero?
• I write jokes for a living, I sit at my hotel at night, I think of something that's funny, then I go get a pen and I write it down. Or if the pen is too far away, I have to convince myself that what I thought of isn't funny.
• You know, I'm sick of following my dreams. I'm just going to ask where they're going and hook up with them later.
• This is what my friend said to me; he said "You know what I like? Mashed potatoes." It's like, "Dude. you gotta give me time to guess. If you're gonna quiz me, you must insert a pause in there." A guy told me he liked cherries... But... I waited to see if he was gonna say tomato... Before I realized he likes cherries just... All right, that joke is ridiculous. That's like a carbon copy of the previous joke but with different ingredients. I don't know what I was trying to pull off there.
• If you're watching a parade, make sure you stand in one spot; don't follow it, it never changes. And if the parade is boring, run in the opposite direction. You will fast-forward the parade.
• If I was the headless horseman's horse, I would f*#% with that dude. "Yeah, we're going that way. We're not headed towards the hay." Imagine if the headless horseman had a headless horse, that would be f*#%ing chaos. "We need a head!"
• I can read minds but, it's pointless cause I'm illiterate. I'd know what you were thinking, if I could read.
• My friend said to me "I think the weather's trippy." I said "No, man, it's not the weather that's trippy, perhaps it is the way that we perceive it that is indeed trippy." Then I thought "Man, I should have just said 'Yeah.'"
• When you buy a box of Ritz crackers, on the back of the box, they have all these suggestions as to what to put on top of the Ritz. "Try it with turkey and cheese. Try it with peanut butter." But I like crackers man, that's why I bought it, 'cause I like crackers! I don't see a suggestion to put a Ritz on top of a Ritz. I didn't buy them because they're little edible plates! You've got no faith in the product itself.
• My fake plants died because I did not pretend to water them.
• I would imagine that the inside of a bottle of cleaning fluid is... f*#%ing... clean.
• I saw this dude, he was wearing a leather jacket, and at the same time he was eating a hamburger and drinking a glass of milk. I said to him "Dude, you're a cow. The metamorphosis is complete. Don't fall asleep or I'll tip you over."
• A fly was very close to being called a "land," cause that's what they do half the time.
• I went to a record store, they said they specialized in hard-to-find records. Nothing was alphabetized.
• I saw a commercial on late night TV, it said,"Forget everything you know about slipcovers." So I did. And it was a load off my mind. Then the commercial tried to sell me slipcovers, and I didn't know what the hell they were.
• A burrito is a sleeping bag for ground beef.

And, after a failed joke: "All right ... that joke is going to be good because I'm going to take all the words out and add new words. That joke will be fixed."

(cf MetaJoke (2001-10-18), Hello Sailor (2003-05-01), Undead Traffic Incident (2004-03-20), Dyslexic Metahumor (2004-08-26), The Crack Cocaine of (2004-05-09), Read Likely (2005-04-04), Card that Poet (2006-08-24), Secrets of the Padding Masters (2006-11-27), Sticky Thoughts (2009-01-13), ...) - ^z - 2019-07-04