A tool designed for driving nails or engaging in similar construction tasks, typically featuring a heavy metal head that strikes a surface.
A term used to describe someone who is completely unable to swim, derived from the notion of a heavy object that sinks.
A colloquial expression referring to a person with a rigid or inflexible mindset, akin to being as hard-headed as a solid block.
Example:
彼女は金づちで鏡を粉々にしました。
A term used to describe a person whose thinking is inflexible and resistant to change, often used in a teasing context.
A colloquial expression for someone who is unable to swim at all, suggesting a lack of adaptability or ease in challenging situations.
Refers metaphorically to a person who is perceived as rigid in their opinions or ideas, comparable to a rock or stone in their stubbornness.