The porn video tag "gay milking (gay)" refers to a specific type of gay pornography. The term "milking" in this context implies that the sexual activity being depicted is focused on one or both partners reaching orgasm, with a particular emphasis on ejaculation. This typically involves manual stimulation and/or oral sex, often with a close-up view of the act. The word "gay" simply denotes that the content features male participants engaged in same-sex sexual activity. In summary, this tag indicates a gay porn video focused on orgasms and ejaculation.