マダムキラー

noun

ladykiller who targets married women; handsome young man popular with married women

Wasei-eigo from 'madam killer'. Refers to a man, often young and attractive, who seduces or is especially popular among married women. Colloquial and somewhat dated.

wasei-eigo (Japanese-coined English), from madam killer

• 彼かれはマダムキラーとして有ゆう名めいで、いつも年とし上うえの既き婚こん女じょ性せいに囲かこまれている。

  He's famous as a madam killer and is always surrounded by older married women.