Gay Solo refers to a pornographic video featuring a male performer engaging in self-pleasure and masturbation. The term "gay" indicates that the performer is of a homosexual orientation, meaning he is sexually attracted to males and enjoys erotic experiences with men. In this context, a gay solo scene typically involves one male character pleasuring himself either manually or using other devices like vibrators, dildos, etc., in an intimate setting. These videos are intended for adult audiences who appreciate gay sexual content and fantasy.