This porn video tag "chubby-tranny" combines two different aspects of the content:
1. Chubby: The performer or character in the scene has a fuller, curvier body type, which is often considered attractive and desirable. This term highlights their more voluptuous appearance.
2. Tranny (short for transgender): One or more of the performers involved in the scene have transitioned from one gender to another or express a non-binary gender identity. This tag indicates that the scene may include individuals who are transgender, transsexual, or gender nonconforming in nature.
In summary, this tag refers to a porn video featuring chubby performers who identify as transgender, transexual, or gender nonconforming. The focus is on both their physical appearance and their unique gender identities.