重箱の隅をつつく (じゅうばこのすみをつつく) Japanese meaning | KotomoraMeanings
1
expression, godan verb (-ku)
nitpick; complain about trifles
idiomatic expression
Idiomatic expression literally meaning 'to poke at the corners of a tiered food box', used for someone who fusses over minor, unimportant details.
そんな重箱の隅をつつくような指摘はやめてください。
Please stop making such nitpicky remarks.