湯ゆ水みずのように使つかう

expression, godan verb (-u)

spend money like water; throw money around

Idiomatic expression comparing wasteful spending to using hot and cold water freely. Often used critically or humorously.

• 彼かれは親おやの遺い産さんを湯ゆ水みずのように使つかってしまった。

  He spent his parents' inheritance like water.

• お金かねを湯ゆ水みずのように使つかうのはやめなさい。

  Stop spending money like it grows on trees.