短语overnight millionaire，意思是暴发户，例如：
1、It's said his father is an overnight millionaire.据说他父亲是个暴发户。
2、The second camp have bought into the idea that the Internet can turn almost anyone into an overnight millionaire.第二个阵营引入的想法是网络能在一夜之间使任何人变成百万富翁。
overnight的用法搭配和短语
、adv. 副词：
在夜间在晚上 during or for the night
例：We stayed overnight in London after the theatre. 我们看完戏后在伦敦住了一晚。
突然一夜之间旋即 suddenly or quickly
例：Don't expect it to improve overnight. 不要指望这事一下子就改善了。
2、adj. 形容词：
夜间的晚上的只供一夜的 happening during the night for a night
例：an overnight flight 夜间飞行
突然的很快的一夜之间的 happening suddenly or quickly
例：The play was an overnight success. 这部剧作一夜成名。
3、verb. 动词：
例：They had told her she would be overnighting in Sydney. 他们跟她说过她将在悉尼过夜。
扩展资料
overnight 有关谚语：
1、Rice is afraid of cold dew and frost overnight， wheat is afraid of clear and bright rain. 稻怕寒露一夜霜，麦怕清明连放雨。
2、Success doesn't happen overnight. 成功不会一夜间发生