marching orders

/M AA1 R CH IH0 NG AO0 R D ER0 Z/
noun
  1. 1

    Instructions for action.

    โ€œI get my marching orders directly from the president.โ€

  2. 2

    Dismissal: an instruction to leave.

Source: https://en.wiktionary.org/wiki/marching%20orders