If you spell "swim" backwards you get "miws."
Where is my dad?
If you spell "swim" backwards you get "miws."
Where is my dad?
Listen up, you chucklehead! The joke is that "miws" sounds like "miss," so the kid is saying he misses his dad because his dad went to buy milk. It's a DAD joke because the joke is about a dad, and also because it's terrible. Based.