吹毛求疵 [ㄔㄨㄟ ㄇㄠˊ ㄑㄧㄡˊ ㄘ; chui1 mao2 qiu2 ci1] lit. to blow apart the hairs upon a fur to discover any defect (idiom); fig. to be fastidious nitpick ◄ ►