expulsion room; banishment room; boredom room
Colloquial term for a room where employees who cannot be fired are assigned menial or isolated tasks to pressure them into resigning voluntarily.
See also: 追い出し (おいだし)
He was sent to the expulsion room and now just stares out the window every day.
Expulsion rooms are seen as problematic as a means of encouraging resignation.
退職勧奨 is the formal term for encouraging voluntary resignation, while 追い出し部屋 is the colloquial term for the physical room or practice used to achieve that.
Compound of 追い出し (expulsion, from 追い出す 'to drive out') and 部屋 (room). The term reflects the practice of isolating unwanted employees to pressure them into quitting.