The porn video tag "british-boys" refers to a specific category of adult content featuring young men from Britain. In the context of adult films or explicit images, this tag denotes that the actors involved are male and are of British nationality. This type of content may include various scenes, such as solo masturbation, oral sex, or intercourse, depending on the specific video or image. "British-boys" is a way to classify this particular type of adult material for viewers who have an interest in content featuring young men from Britain.