装疯卖傻

bù yào zài zhuāng fēng mài shǎ le

不要再装疯卖傻了。

Quit acting like an idiot.

tā cháng cháng zhuāng fēng mài shǎ shǐ dé rén rén dōu tǎo yàn tā

他常常装疯卖傻，使得人人都讨厌他。

He acted the fool so often that everyone got sick and tired of him.