All linked posts are NSFW
1. Proposed by comment #9276906 under post #5800675
ignisters said:
i love crossovers like this. is there no tag for crossovers with several different characters? there should be.
For when many different characters from different franchises/works interact. "copytags:>x" doesn't adequately function because it can be thrown off due to intellectual property -> copyright owner implication. I first thought it could be named mass_crossover, but that wouldn't clearly communicate the requirement for a group of characters instead of one massive fusion.
2. Theme that occasionally pops up time to time, for example post #4545830 and post #1422061: characters from different franchises/works that are considered to be competing with each other (in these two examples, dota and league_of_legends) dominate, fight and/or humiliate each other. It definitely fits scenarios where characters display awareness of the fourth wall and the media they are in (like the "I'm from a garbage game" bodywriting in post #1422061), but not sure where to draw the line to separate it from simple crossovers that happen to not play nicely together.
intermedia_rivalry? hostile_crossover? franchise_domination, to take inspiration from interspecies_domination?