内うち勘かん定じょう

noun

secret account; off-the-books account

Refers to an account or financial record kept hidden from official books, often for discretionary spending or concealment.

• 会かい社しゃの内うち勘かん定じょうが発はっ覚かくして、社しゃ長ちょうが辞じ任にんした。

  The company's secret account was uncovered, and the president resigned.