兜かぶとの緒おを締しめる

expression, ichidan verb

brace oneself; pull oneself together; tighten one's helmet strings

Idiomatic expression often used in the imperative form 勝って兜の緒を締めよ (after a victory, tighten the strings of your helmet) to mean staying vigilant and not letting one's guard down after success. The literal image is of securing one's helmet before battle.

See also: 勝って兜の緒を締めよ

• 試し合あいに勝かった後あと、兜かぶとの緒おを締しめて次つぎの練れん習しゅうに臨のぞんだ。

  After winning the match, I tightened my helmet strings and prepared for the next practice.

• 勝かって兜かぶとの緒おを締しめよという言こと葉ばを胸むねに刻きざんでいる。

  I keep in mind the saying 'After victory, tighten your helmet strings.'