get your marching orders

get (one's) marching orders

To be dismissed from employment or to be ordered to leave or move on from a place. An allusion to a military command of deployment. After messing up that account, I'm terrified that I'm going to get my marching orders. Bill had been living in his parents' house for nearly a year without working when he finally got his marching orders out of there.
See also: get, marche, order

get your ˈmarching orders

(British English, informal) be ordered to leave a place, a job, etc: When he kept arriving late he got his marching orders.These were originally the orders given for soldiers to depart.
See also: get, marche, order