The porn video tag "japanese-sex-doll" refers to a specific type of adult content featuring lifelike, anatomically correct silicone dolls, which are typically designed in the style and appearance of Japanese women. These dolls are often used for solo or partnered sexual activities, providing a realistic experience for users who may have a preference for this particular aesthetic. The term "Japanese-sex-doll" highlights the cultural origin and design elements of these dolls, making them distinct from other types of sex dolls available in the market.