xiǎo​cōng​ming

cleverness in trivial matters; petty person

小聪明 小聰明 xiǎo​cōng​ming
cleverness in trivial matters; petty person nounverb
Cleverness in trivial matters; a person who is clever or sharp in minor ways, usually with the negative nuance of being petty-minded or lacking wisdom in more important matters

Frequency

Movie subtitles
2.15 per million appears in 1% of films
Written text
1.21 per million

Sources