金隠し
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ん
か
く
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Meanings
1
protective cup; groin guard
Specifically refers to padding or armor covering the testicles, used in sports or historical armor.
In kendo matches, a groin guard is worn.
2
urinal shield; splash guard
Refers to the hood or mantle on a urinal or squat toilet that prevents splashing.
The urinals in public restrooms have splash guards.