What do you mean a driver who doesn't want to be a general is not a good cook?

Putting several unrelated words together is pure ridicule and nonsense. It's just funny. It doesn't mean anything.

This seems to be a sentence from Degang Guo's cross talk? The phrase "a chef who doesn't want to be a tailor is not a good driver" is obviously a copy of Napoleon's statement that "a soldier who doesn't want to be a general is not a good soldier", which is intended to encourage soldiers to be motivated. After being adjusted by Degang Guo, this sentence has a strong teasing meaning, which makes people feel funny and fishy. Tailor, chef and driver have little contact and are dragged together, resulting in logical confusion and a sense of humor. It is this sense of humor that makes people laugh.