枝葉しよう末節まっせつ
shiyō massetsu

Noun

1. unimportant details; inessentials

Yojijukugo
枝葉しよう末節まっせつ議論ぎろんはもうそろそろめにして、本筋ほんすじはなしうつりませんか。
edahamassetsuno gironwa mō sorosoro tomeni shite honsujino hanashini utsurimasenka.
Why don't we stop arguing over these piddling matters and get to the issues at hand?