This porn video tag is composed of three descriptive terms: "sexy," "thick," and "tranny." In the context of adult content, these words can be defined as follows:
1. Sexy - refers to something or someone that arouses sexual desire or attraction, often due to their appearance or behavior.
2. Thick - in this context, it is used to describe a person with a voluptuous or curvy body shape. It may also refer to someone with a fuller figure or larger proportions.
3. Tranny (transsexual) - refers to an individual who has undergone or is in the process of transitioning from one gender to another. This term often implies that the person involved has undergone hormone treatments and/or surgeries related to their gender transition.
Putting it all together, this tag would describe a transsexual (trans) individual with a curvy or voluptuous body shape as being sexy in a way that is visually appealing for adult audiences experienced with porn videos.