Crowley is full of shit.

By this definition a hammer is a magical or "magickal" implement - the K was Crowley's invention, so that he could trademark it - which of course can be true if someone decides as much, but the only reason to couch such trivia in the pettifogging obscurity Crowley favored is because doing so will help you nail bored young socialites, an activity which Crowley also famously favored. (Gotta watch out for that neurosyphilis! What a shame he never did.)

Try thinking for yourself, instead.