rob the cradle AmEto have a sexual relationship with someone who is a lot younger than you – used humorously老牛吃嫩草〔指跟比自己年龄小很多的人有性关系，幽默用法〕;SYNcradle-snatch BrEˌrob the ˈcradle(NAmE) (informal)to have a sexual relationship with a much younger person老牛吃嫩草，劫摇篮（指跟比自己年龄小很多的人发生性关系） |