The term "Scooby-Doo" is a porn video tag referring to the popular animated television series, Scooby-Doo, Where Are You!. In this context, it is used as a reference to specific fetishes or sexual preferences related to the cartoon. This could include fantasies about bestiality, animation, or characters from the show itself. As with any porn video tag, understanding the meaning requires knowledge of the context and themes within the series and the wider adult industry. It is not suitable for minors and those who may be unfamiliar with adult content.