Differing degrees of rape?

[Jenny A]

Ours is a cute pretty word that is obviously not sexual and cannot be mistaken for sexy talk. If someone doesn't want a safeword, they still need to find a responsible way to communicate when no means yes and when it actually means no.

Yes indeed. Action based "safe words" are necessary if gagging is called for.

Usually though, partners who know each other well never actually have to use or hear them. We know each other well enough to know when no means no without hearing that cute non-sexual word, whatever it happens to be.