Last Updated:2025/11/21
(idiomatic) A pointless venture, in the sense of sending something to a place where it is made, or where they already have an abundance.
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coals to Newcastle
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Source Word
coals to Newcastle
Noun
idiomatic
plural
plural-only
Japanese Meaning
既に十分に存在しているものを、さらに供給する無駄な試み / 不要なものを改めて持ち込む、無意味な行為