Transom in the context of pornography refers to a sexual act where the penetrating partner has a physical or anatomical difference, typically being female-bodied with a strap-on harness and dildo. This tag is used when the scene involves a trans woman (or a cisgender man identifying as a woman) penetrating a male-identified partner with a strap-on dildo. The term "transom" is a creative combination of "transgender" and "gangbang," which often includes multiple partners, but it can also refer to any scene involving a trans person engaging in penetrative sex with a man. This term is used mainly for the purposes of categorization and searching within adult content platforms, and it should not be confused with the architectural term "transom" that refers to a horizontal architectural element, such as a window or an opening, above a door or between a window and ceiling