口くち裏うら合あわせ

noun

getting stories straight; arranging a consistent story

Refers to the act of coordinating what people will say in advance so that their accounts match. Often used in contexts of collusion or covering up. The verb form is 口裏を合わせる.

See also: 口裏を合わせる

• 彼かれらは口くち裏うら合あわせをして、同おなじ言いい訳わけをした。

  They got their stories straight and gave the same excuse.

• 口くち裏うら合あわせがばれて、嘘うそが露ろ見けんした。

  Their story coordination was exposed, and the lie came to light.