Ads crafted for the millennial generation are using coarse and explicit language to break through the clutter, writes Stuart Elliott. Ads for Fresh and Sexy intimate wipes by Playtex, for example, use slang to refer to body parts and sex acts. Other advertisers have entered the world of "The Office" character Michael Scott, who favored "That's what she said" jokes to turn everyday discourse into a dirty double entendre. "It's the idea of innuendo, that everything is open to interpretation," says Elaine McCormick, a Gray New York creative director.