"jerk-tranny" is a term used in the adult content industry. It is composed of two words:
1. Jerk: This is an informal term for masturbation or self-pleasure, often done by stroking one's own genitals until orgasm is reached. In this context, it implies the act of masturbation being performed.
2. Tranny: This is a colloquial abbreviation of the word "transgender." It refers to someone whose gender identity differs from their assigned sex at birth. In adult content, it can sometimes be used as a shorthand to describe transgender performers or content involving them.
So, "jerk-tranny" refers to a video tag in which a transgender performer is masturbating or engaging in self-pleasure. This term could be used by viewers who are interested in watching this specific type of adult content featuring transgender individuals