What is a yummy mummy, exactly?

During a speech at Fortune magazine's Most Powerful Women event earlier this week, Cherie Blair said that a growing band of "yummy mummies" were sacrificing a rewarding career because of their approach to motherhood. "You hear these yummy mummies talk about being the best possible mother and they put all their effort into their children. I also want to be the best possible mother, but I know that my job as a mother includes bringing my children up so actually they can live without me," she said. But what exactly is a yummy mummy? Do you know one? Are you one? Tell us in the thread below. • Follow Comment is free on Twitter @commentisfree