"Lengua de gato" means "cat's tongue" in Spanish, but it has nothing to do with real cats! It is actually a type of cookie that is long and thin with a curved tip, kind of like a cat's tongue. These cookies are made with butter, sugar, flour, and egg whites, and then baked until they are crispy. Many people think they are delicious and like to dip them in milk or coffee. So next time someone mentions "lengua de gato," remember it's a yummy cookie and not a real cat's tongue!