kill the donkey the moment it leaves the millstone—give sb. the boot as soon as he has done his job
卸磨殺驢
kill the donkey the moment it leaves the millstone—get rid of sb as soon as he has done his job
卸磨殺驢xiè mò shā lǘ
把拉完磨的毛驢卸下來殺掉。比喻不顧情義，過河拆橋，把曾經(jīng)為自己效力過的人一腳甩開。get rid of sb. as soon as he has done his job, kill the donkey the moment it leaves the millstone