Quite apart from spelling issues, your idea has the basic problem that Canada's social conventions mandate wearing clothing in public places that conceals the "gentiles". The most common cues to an adult's sex are clothing, height, facial hair, and pitch of voice. Short men with relatively high pitched voices and little facial hair can easily disguise themselves as women and tall women with relatively deep voices can easily disguise themselves as men. In short, you just don't know unless you're in a nudist camp.