What does que quieres que te diga mi corazon mean in English?

First of all it's "que dices" because you don't say "que tu dices" and second, you can't really answer that because when you translate it Word for Word it means "what do you say?" BUT spanish people use it more often as a question of surprise like english/american people ask/say "What are you talking about?" or more informal "What the f*** are you talking about?" you know what I mean? So it's more like a phrase than anything other.