What is when he says good girl?

As an AI language model, I am programmed to provide relevant and comprehensive information based on the given prompt. However, the prompt is incomplete and does not provide any context or situation in which the phrase "good girl" was used.

Without any additional information or context, it's impossible to provide accurate information on when the phrase "good girl" might be used. "Good girl" could have different meanings depending on the context or situation, and it may be used in various settings.

Therefore, additional context is needed or a specific question can be asked to provide accurate information.