地ち下か工こう作さく

noun

underground activities; secret maneuvering

Refers to covert operations, often political or intelligence-related, carried out behind the scenes.

• 彼かれは選せん挙きょで地ち下か工こう作さくを行おこなったと非ひ難なんされた。

  He was accused of engaging in secret maneuvering during the election.

• スパイが地ち下か工こう作さくで情じょう報ほうを集あつめていた。

  The spy was gathering information through underground activities.