"trannyaddiction" is a term used to describe a porn video or content that involves a transsexual or transgender individual, typically where the viewer has an addiction or strong attraction to watching such content. In this context, "tranny" refers to a trans woman (transsexual female), and "addiction" implies a strong, compulsive desire for the specific type of sexual content featuring trans women. It is used as a tag for adult films and other adult media that cater to this particular niche within the porn industry.