What does comos se yama el perro de tu hija mean in English?

This phrase is actually incorrect Spanish. It should be "¿Cómo se llama el perro de tu hija?"

Here's the breakdown and translation:

* ¿Cómo? - How?

* se llama - is called (literally "calls itself")

* el perro - the dog

* de tu hija - of your daughter

The correct translation is: "What's your daughter's dog's name?"