All the meanings of the word 'slash', other than an oblique forward or backward stroke are either violent or obscene. They include cuts made with swords, lashing with a whip, cutting maliciously car tyres with a knife, and in Britain the act of male urination (I have never heard it applied to a female).
Hence I find the word when used in its now everyday sense of a small inoffensive printed stroke (which is American in origin) unpleasantly resonant. I tend therefore to use the time-honoured British nomenclature of stroke, forward stroke, and backward stroke. Does everyone understand that?