This porn video tag is composed of two parts: "pissing" and "spy."
"Pissing": This term refers to the act of urinating, which is a common fetish or kink in the adult industry. In this context, it indicates that the content of the video involves urination as a sexual activity.
"Spy": The word "spy" denotes that there is an element of secret observation or surveillance involved in the video. This could mean that the scene is filmed with a hidden camera, or that one or more participants are engaging in voyeuristic behavior by spying on others.
So, combining these two terms, "pissing-spy" refers to a porn video that features urination as a sexual act and includes an element of secret observation or surveillance. This could involve scenarios like someone being watched while they urinate, or people engaging in urination play while spying on each other.