This porn video tag refers to a specific type of content within the gay genre. In this case, "training" is used as a metaphor for teaching or learning new techniques and experiences related to homosexual acts. The term "gay training" implies that the video features scenes where one or more individuals are being introduced to or guided through various aspects of same-sex relationships, including but not limited to oral sex, anal sex, and other intimate activities.
Given that this tag is specifically for a gay audience, the content might also focus on exploring different role dynamics such as tops and bottoms, power play, dominance, submission, or even experimenting with new positions and practices within the homosexual experience. The purpose of these scenes could be educational, sensual, or both. Overall, "gay training" is a tag used to describe pornographic content that caters to viewers who are interested in learning and experiencing different aspects of gay relationships, often in an instructive manner.