一いっ発ぱつ屋や

noun

one-hit wonder; flash in the pan

Refers to a person or group that achieved a single major success but failed to repeat it, often used in entertainment.

• 彼かれは一いっ発ぱつ屋やと言いわれているが、今いまでもあの曲きょくは愛あいされている。

  He's called a one-hit wonder, but that song is still loved today.

noun

all-or-nothing gambler; one-shot speculator

Describes someone who stakes everything on a single risky venture, often in business or gambling.

• あの投とう資し家かは一いっ発ぱつ屋やで、一いち度どの大おお勝しょう負ぶで財ざいを成なした。

  That investor is a one-shot speculator who made his fortune on a single big gamble.

noun

slugger; home-run batter

Baseball term for a batter who specializes in hitting home runs, often with a high-risk, high-reward style.

• 彼かれは典てん型けい的てきな一いっ発ぱつ屋やで、三さん振しんも多おおいがホームランも多おおい。

  He's a typical slugger; he strikes out a lot but also hits many home runs.