下逐客令　

◎ 下逐客令 xià zhúkèlìng

[ask an unwelcome guest or visitor to leave;show sb.the door] 謔語,指把客人趕走。戰(zhàn)國時,秦始皇曾下令驅逐不是秦國人的客卿,后來就泛指趕走客人為下逐客令