When does a dad joke become a dad joke? Dad Jokes When does a dad joke become a dad joke? When it becomes apparent. 👍 Upvotes: 1 More Dad Jokes What are the strongest days of the week? What is the leading cause of dry skin? What is the least spoken language in the world? Why do trees seem suspicious on sunny days? Why does a moon rock taste better than an earth rock? You see, mountains aren’t just funny. See all Dad Jokes →