huǒ​yǎn​jīn​jīng

piercing eyes

火眼金睛 huǒ​yǎn​jīn​jīng
piercing eyes
Initially used to describe the magical eyes of 孙悟空 sūn​wù​kōng in the novel "Journey to the West" which could see through demons; now refers to sharp eyes or penetrating insight that can distinguish truth from falsehood.

Frequency

Movie subtitles
0.270 per million appears in 0% of films
Written text
0.638 per million

Sources