The porn video tag "gay-blackhair" refers to a specific type of gay porn content. In this case, there are two main elements to consider:
1. Gay: This indicates that the content is focused on sexual activities between men. In this context, it is not related to heterosexual or straight content involving men and women.
2. Blackhair: This term likely refers to participants with black hair. It could also potentially imply a specific ethnicity or cultural preference; however, without more context, it's hard to determine the exact nuance. Regardless, this tag suggests that the video features individuals with black hair engaging in gay sexual activities.
In summary, "gay-blackhair" is a porn video tag for content involving men with black hair participating in gay sex scenes.