大おお勝しょう負ぶMeanings1noundo-or-die game; crucial contestUsed for a high-stakes match or competition where everything is on the line.明日あしたの試し合あいは大おお勝しょう負ぶだ。Tomorrow's match is a do-or-die game.彼かれは大おお勝しょう負ぶに強つよい選せん手しゅだ。He is a player who thrives in crucial contests.