度ど胸きょう試だめし

noun

test of courage; putting one's courage to the test

Refers to an act or situation where one's bravery is challenged, often deliberately.

• 彼かれは度ど胸きょう試だめしに、真ま夜よ中なかの墓ぼ地ちを一人ひとりで歩あるいた。

  As a test of courage, he walked alone through the graveyard at midnight.

• それは単たんなる度ど胸