This porn video tag, "gayyoung", refers to a specific category within the adult entertainment industry. It combines two elements: 'gay' and 'young'. Gay signifies that the content involves male-on-male sexual activities or interactions, while young implies that the performers involved are relatively young in age, typically between their late teens to mid-twenties. This tag denotes a particular niche within gay pornography featuring younger actors, catering to audiences who have a preference for this specific category.