不ぶ器き用よう者もの

noun

bungler; clumsy person; all thumbs

Refers to a person who is habitually clumsy, awkward, or inept, especially with manual tasks. Often used self-deprecatingly or as mild criticism.

• 私わたしは不ぶ器き用よう者もので、料りょう理りがうまくできない。

  I'm a clumsy person and can't cook well.

• 彼かれは不ぶ器き用よう者ものだから、細こまかい作さ業ぎょうは任まかせられない。

  He's all thumbs, so we can't entrust him with delicate work.