Q: What is it called when a cat wins a dog show?
A: A CAT-HAS-TROPHY!

Explanation: Today in the United States is National Cat Day! so a cat joke seemed appropriate.

When someone (or some animal!?!) wins a contest like a dog show that person often wins a trophy.  When something bad happens it is called a catastrophe or a disaster.

This joke plays with the word catastrophe and breaks it into parts: cat-has-trophy- which sounds a lot like catastrophe.  Personally, I think it would be great if a cat won a dog show!  Have a great National Cat Day!