Using slang in a Scientific Paper We are writing a paper about an algorithm that takes a group of solutions and sorts them by their likelihood of being equal to the one and only 'good solution'.

Internally, we refer to this 'good solution' as meromero, which is a Mexican street slang for 'the most important' or the precisely for 'the one and only'.

I like the word because it allows naming an important concept with a funky and short sound. Also, it forces you to draw your eyes towards it, creating some kind of highlight about the ideas related to this 'one and only good solution'.

However, I'm not sure of using it, precisely because it is a slang word and I don't remember ever reading a paper using slang words.

Therefore, my question is:

Is using a slang word to name a concept bad taste in a scientific paper?

Notice that this is merely a personal curiosity, we have already choosen not to use the word.
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."