lackohumoratosis
Lackohumoratosis is when you’re so serious you think every joke is an insult. You’re like a grumpy old man who hates puns.
My brother has lackohumoratosis. He yelled at me for making a joke about his bad haircut.
My teacher has lackohumoratosis. She gave me a pop quiz for laughing at the janitor.
My neighbor has lackohumoratosis. He called the police when I told a joke about his cat.