泥どろ棒ぼうに追おい銭せん

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Meanings

1

throwing good money after bad

idiomatic expression

Proverbial expression meaning to waste more resources on a lost cause, like giving extra money to a thief who has already stolen from you.

失しっ敗ぱいした事じ業ぎょうにさらに投とう資しするのは、泥どろ棒ぼうに追おい銭せんだ。
Investing more in a failed business is like throwing good money after bad.