In the graveyard of inventions that never quite worked, there is a small, strange section devoted to language. For every buzzword that fl ies, according to Marian Salzman, a million sink like a stone. She should know. Salzman, an advertising-executive-turned-PR who popularised the term metrosexual, laughs at the words she thought would take off and which sound completely absurd. In the 1990s, when women reached the boardroom in increasing numbers, she had high hopes for She E O. She valiantly drops the term Chindia to describe the rise of Chinese...