to behave as if you are very shocked, especially when you show more shock than you really feel in order to show that you think something is morally bad

They clutch their pearls at the rest of the nation's obesity. 他们对国内其他地区的肥胖问题感到不可置信。

Only hypocrites clutch their pearls and faint when the truth is spoken. 当真理被说出时，只有伪君子才会过度反应地假装晕过去。