The phrase "gay-shop" can have multiple meanings. In the context of a porn video tag, it most likely refers to:
1. A store or location where gay-themed products are sold, such as adult toys and clothing, which may be featured in a video.
2. A specific video where two or more men engage in sexual activities with each other. In this case, "gay" signifies that the content is focused on male homosexuality.
Note: The term "shop" could refer to a physical store or a virtual store (e.g., an online shop).