鬼に金棒

おににかなぼうoninikanabou

expression

  1. making something strong even stronger
  2. solidifying something's chances
  3. (giving) a metal rod to an ogre

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences