I used to have this song for my dog that went to the tune of the song SpongeBob sings for Squidward in an episode. But instead of "Squidward, you're the best friend in the world, Squidward, you're the best friend in the sea."

It went "Aragorn, you're the best dog in the world, Aragorn you stink like fried cabbage."

Not a song, but I sometimes used to call my other dog Idiota instead of Elliot.