洞ヶ峠を決め込むほらがとうげをきめこむ

expression, godan verb (-mu)

wait and see which way the wind blows; sit on the fence; wait for a good opportunity

Proverbial expression originating from a historical anecdote about a warlord who waited at Horagatoge to see which side would win before joining. Used when someone delays a decision to see how a situation develops, often with a negative connotation of opportunism.

• 彼かれは洞ヶ峠ほらがとうげを決きめ込こんで、どちらの案あんにも賛さん成せいしなかった。