洞ヶ峠を決め込む（ほらがとうげをきめこむ）

Japanese vocabulary

Meaning: to wait for a good opportunity; to come down on the right side of the fence; to see which way the cat jumps; to wait and see at Horagatoge

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “洞ヶ峠を決め込む” pronounced in real videos (YouGlish)