鉄てっ槌つい

noun

iron hammer; metal hammer

Literal meaning: a hammer made of iron. Used in historical or descriptive contexts.

• 鍛冶かじ屋やが鉄てっ槌ついで熱ねっした鉄てつを打うつ。

  The blacksmith strikes the heated iron with an iron hammer.

noun

crushing blow; severe punishment; devastating strike

Figurative use, often in the set phrase 鉄槌を下す (to deliver a crushing blow, to punish severely). Implies a decisive, harsh action.

See also: 鉄槌を下す

• 裁さい判ばん所しょは悪あく質しつな業ぎょう者しゃに鉄てっ槌ついを下くだした。

  The court delivered a crushing blow to the malicious business.

• 彼かれの不ふ正せい行こう為いに上じょう司しが鉄てっ槌ついを下くだすだろう。

  His boss will likely bring down the hammer on his misconduct.