The term "sinon" seems to be a misspelling or a variant of the word "Sinon." In Greek mythology, Sinon was a Trojan who played a significant role in the story of the Trojan War. He is known for deceiving the people of Troy by telling them that the Greeks had left a huge wooden horse outside their city as a gift, when in reality it contained Greek soldiers waiting inside to infiltrate the city.
In the context of porn video tags, "sinon" might be referring to a roleplay scenario or storyline based on this mythological character and his deception. It could involve themes like trickery, seduction, and betrayal, where one partner deceives the other, often leading to intense sexual encounters. However, as it's not a clear porn video tag in English, the specific meaning might vary depending on the user's interpretation or cultural context.