The porn video tag "boys-pissing (gay)" refers to a specific type of adult content that features young or teenage males engaging in urination activities, often with an erotic or sexual connotation. In this case, the term "gay" is used to specify that it is specifically focused on homosexual interactions between the boys. This type of video typically showcases boys performing various acts of pissing, such as urinating on each other, drinking their own or each other's urine, or using urine as a form of stimulation during sexual activities. Note: This description contains explicit content and may be disturbing to some readers. Viewer discretion is advised.