penny wise and pound foolish
01
小銭に細かく大金に甘い, 節約の仕方を間違える
used to describe someone who is extra careful about spending little amounts of money but has no problem with spending large amounts
idiom
informal
例
He always buys the cheapest tools, but then they break quickly. He's penny wise and pound foolish.
車の修理になると、彼は小銭に細かく大金に甘い。
