This porn video tag refers to a scene featuring transgender women engaging in lesbian sexual activity. Transgender or transsexual individuals are those whose gender identity does not match the sex they were assigned at birth, and may have undergone hormone therapy or other medical procedures to transition from their assigned sex to their identified gender. In this context, "transexual-lesbian" means that the scene showcases a relationship between two transgender women who are expressing their sexuality with each other in a lesbian manner, focusing on their intimate connection and pleasure.