Using slang in a Scientific Paper
Mathematicians frequently come up with questionable names drawn from a variety of questionable sources. And then at some point there will be the inevitable MathOverflow thread about why such-and-such is named what it is. I personally rather like "meromero," but in the context you're describing, I don't see how it's an improvement over saying "unique 'good' solution," where you define what exactly you mean by "good."