The term "schemale-solo" is a combination of two words, "shemale" and "solo".
"Shemale" refers to a male-to-female transsexual or an individual with both male and female sexual characteristics. This term might be considered outdated or offensive by some individuals, so it's important to consider the context in which it is used. In the context of porn video tags, it denotes a performer who has both male and female sexual traits.
"Solo" means that the performer is engaging in self-pleasuring activities alone, without any other participants involved. This type of content often focuses on the performer's body, physical transitions, and self-stimulation techniques.
So, "schemale-solo" refers to a porn video featuring a shemale performer engaging in solo self-pleasuring activities.