What they say in the valley expression Girl?

"What they say in the valley" doesn't have a clear, established meaning. It's likely a phrase used in a specific context or community, and it could be interpreted in different ways depending on the situation.

To understand what it means, you'd need more information. For example:

* Where did you hear this phrase? Is it from a specific book, movie, or TV show?

* Who said it? What was the speaker's tone and intention?

* What was the context? What was happening before and after the phrase was said?

With more information, I could help you understand what "What they say in the valley" might mean in that specific case.