shed crocodile tears 鳄鱼的眼泪；猫哭耗子假慈悲

【例句】
She shed crocodile tears when she dismissed him from his job.
她把他解雇时，流出了鳄鱼的眼泪。

Get out, don't shed crocodile tears to me; you know you are really glad they've met with misfortune.
走开，别在我面前假惺惺的了；你自己明白，对他们遭到不幸你是暗自高兴的。