爪に火をともす
Idiom- 1to lead a stingy life ; to scrimp and save ; to pinch pennies ; to light one's (finger)nails (instead of a candle) Translated by Jiyomi
Other writings and readings
爪に火を灯すつめに火をともす爪に火を点す
expressions (phrases, clauses, etc.) · Godan verb with 'su' ending
JMdict entry 2667460. Source and licence.