What does tengo un primo que es todo galan mean in English?

The phrase "tengo un primo que es todo galán" translates to:

"I have a cousin who is a real charmer."

Here's a breakdown:

* Tengo: I have

* Un primo: A cousin

* Que: Who is

* Es todo: Is all

* Galán: Charmer, handsome, attractive

The phrase emphasizes that the cousin is not just attractive, but also has a charming personality and presence.