1.
hammer
A tool with a heavy metal head used for hitting nails.
金槌で釘を打つ。
To hit a nail with a hammer.
金槌を取ってきて。
Go get the hammer.
2.
person who can't swim
Colloquial term for someone who sinks like a hammer in water.
彼は金槌だから、プールに入らない。
He can't swim, so he won't go in the pool.
金槌 has two meanings: a hammer (tool) and a person who can't swim.
SENSE 1 - HAMMER:
- 金槌で釘を打つ: to hit a nail with a hammer
- 金槌を取ってきて: go get the hammer
SENSE 2 - NON-SWIMMER (COLLOQUIAL):
- 彼は金槌だ: He can't swim
- 金槌だからプールに入れない: I can't swim so I can't go in the pool
WHY THIS MEANING?
A metal hammer sinks immediately in water - just like someone who can't swim!
WORD FORMATION:
金 (metal) + 槌 (hammer)
ALTERNATIVE WORDS:
- ハンマー: hammer (loanword)
- 木槌: wooden mallet