"Fallen" in the context of a porn video tag generally means that one or more individuals have been overpowered and forced into submission, often involving a power dynamic such as domination, captivity, or restraint. This could include scenes where someone is captured or tied up, and may involve elements of rough sex, forceful penetration, or other non-consensual actions. It's essential to remember that these are consensual adult performers engaging in roleplay, and the actions depicted should not be confused with real-life abusive situations. This tag is for adult audiences only who are familiar with BDSM and kinky roleplays within the porn industry.