腹ふく心しん

noun, noun which may take the genitive case particle 'no'

confidant; trusted friend; trusted retainer

Refers to a person one trusts deeply and confides in, often in political, organizational, or historical contexts. Can be used attributively with の.

• 彼かれは社しゃ長ちょうの腹ふく心しんとして知しられている。

  He is known as the president's confidant.

• 腹ふく心しんの部ぶ