This porn video tag, "gay torture," refers to a specific genre within the gay adult film industry. The term "torture" can often be interpreted as BDSM or bondage-related content where one or more individuals engage in activities such as spanking, flogging, whipping, bondage, and other forms of physical restraint or dominance play.
In this context, "gay" specifies that the scene involves men engaging in sexual activity with each other. So overall, the tag "gay torture" refers to a porn video where men are involved in BDSM or dominance-related activities along with sexual acts. Note that viewers should be aware that such content may involve extreme and explicit sexual situations and is intended for an adult audience who are familiar with and consent to viewing this type of material.