一ひと花はな咲さかせる

expression, ichidan verb

have a moment of glory; enjoy brief success; flourish for a while

Often used when someone achieves a notable but temporary success, especially before retiring, leaving a position, or ending a career. The image is of a single flower blooming briefly.

• 定てい年ねん退たい職しょく前まえに一ひと花はな咲さかせたいと思おもって、新あたらしいプロジェクトに挑ちょう戦せんした。

  Wanting to have one last moment of glory before retirement, I took on a new project.

• 彼かれは若わかい頃ころに一ひと花はな咲さかせたが、その後ごはぱっとしなかった。

  He enjoyed a brief stint of success when he was young, but after that he didn't do much.