Having heard neither phrase before, I'm pretty sure I know what you meant by them. It's not a perfect system but it's better than talking extra-loud English and adding hand signals.
My point is more about how language evolves from common roots, and even if we all start with the same language, it will probably diverge over time we'll be back where we started. Though I suppose it could act as a temporary reprieve, assuming you ignored the costs of teaching it.
