While filing out of the Laura Pels Theatre after Patrick Marber’s Howard Katz, a woman of a certain age was heard exclaiming, “A tour de force!” Having brandished that over-ripe phrase myself on probably too many occasions, I was amazed to hear it applied to the play we’d just sat through. Had I been misusing it all this time? Was the expression actually French for “a total waste of time”? According to Dictionary.com, the......