捨すて金がね

noun

wasted money; money thrown away

Refers to money spent without any return or benefit; often used when an expense turns out to be useless.

• この安やす物ものの掃そう除じ機きはすぐ壊こわれて、捨すて金がねになった。

  This cheap vacuum cleaner broke right away and turned out to be wasted money.