"Boy for Sale" is a gay porn video tag. In this context, it refers to a video where young males are being bought and sold for sexual services in a gay setting. The term "boy" is used instead of men or adults to emphasize the youthfulness or innocence of those involved in these sexual situations. This tag indicates that the video may depict scenarios involving age play, power dynamics, or exploitation themes associated with the concept of buying and selling young individuals for sexual purposes. As always with porn, it's important to remember that what you see on screen is a fantasy and not a representation of reality.