This porn video tag consists of three elements: "tranny," "eat," and "cum." In the context of adult content, these terms have specific meanings.
"Tranny" is short for "transsexual," referring to a person who has undergone or is undergoing gender transition, often involving hormone therapy and/or surgery. The term can be considered outdated or offensive by some, but it's commonly used in the adult entertainment industry. In this context, it refers to a performer who identifies as transsexual.
"Eat" in the context of pornography generally means oral stimulation. This could involve one person engaging in cunnilingus (oral stimulation of a woman's genitals), or another person engaging in fellatio (oral stimulation of a man's genitals).
"Cum" is short for "cumming," which refers to the act of climaxing during sexual activity. This term is commonly used when describing scenes where performers reach orgasm, either through masturbation or partnered sexual activity.
Putting it all together, this porn video tag