Alternate nickname

[Rihanna]

noun a pornographic pseudo-name in disguise

This is likely a term made up by Microsoft Gaming Studios. When in edit mode for an Xbox Live gamer profile, the input description provided for the Name entry is as follows:
Enter your name or alternate nickname.
Up to this point, most people in the world have had their verbal identification needs met by both nicknames and names. (Those two areas are pretty [robust]) However, there are really only two major types of individuals that would need yet another freaking word to call themselves:
Super heroes or [Pornstars] (non-exclusive)
Now we know that comic book people can be a bit enthusiastic at times, but even [DC Comicss] and [Marvels] count combined is under 13,000. If we are generous and assume then there are 50,000 heroes overall, that is only 0.000000000000002777% of the worlds population. That is a really un-super amount!
Estimates for how many woman and men have been filmed in an explicit ([sexy-time]) manner is estimated to be at 2-3% in the U.S., perhaps globally around 1%. That is ~3,[601],[008],300,000% the amount of super heroes allegedly in existence.
([cont] in example)