It seems like the provided tag "3922" does not represent a clear or specific porn video tag. It is possible that it might be a random number, an ID for a particular content, or it could be a mistake in the tag's format. However, without any additional context or information about its origin or usage, it is impossible to give a detailed description of its meaning or relevance to a porn video. If you can provide more information about the context where this "3922" appears, I would be happy to help with explaining its meaning.