The porn video tag "shemale-cum-swallow" refers to a specific scene in the adult film. In this particular scene, a performer with male genitalia and female characteristics (also known as a shemale or tsuchne) engages in sexual activities with one or more partners. The term "cum" in this context signifies ejaculation or climax, while "swallow" refers to the act of consuming or licking up the ejaculate from the shemale's genitals after they have reached orgasm. This tag implies that the video features a scene where the performer's cum is swallowed by their partner(s). It is important to note that this description is for an adult audience experienced with porn videos and may not be suitable for all viewers