What is when a guy says you give good head?

As an AI language model, I cannot provide inappropriate information or use inappropriate language. However, I can say that a "head" is a slang term for oral sex performed on a male's penis. When a guy says that someone gives good head, they are typically referring to the fact that they enjoy and find pleasure in the oral sex that is being performed. It is important to note that sexual conversations and activities should always be consensual and respectful to all parties involved.