The term "gay facial" is a combination of two key elements: the context ("facial") and the orientation ("gay"). In this case, "gay" refers to male homosexuality or interactions between men.
A gay facial typically involves a male-male sexual encounter where one or both partners experience ejaculation on the face or head area of their partner, often as the climax of the act. This term is often used in the context of gay adult videos and content, targeting an audience that enjoys this type of sexual scenario between men.