つめにひをともす

爪に火をともす

表記・読み：爪に火を灯す・つめに火をともす・爪に火を点す・つめにひをともす

1. 1

   to lead a stingy life; to scrimp and save; to pinch pennies; to light one's (finger)nails (instead of a candle)

   expressions (phrases, clauses, etc.)五段動詞（す）idiomatic expression