宋·曾敏行《独醒杂志》卷五：“一日，冲元自窗外往来，东坡问：‘何为？’冲元曰：‘绥来。’东坡曰：‘可谓奉大福以来绥。’盖冲元登科时赋句也。冲元曰：‘敲门瓦砾，公尚记忆耶！’”

敲门的砖石，门敲开后就被抛弃。比喻骗取名利的初步的工具。

鲁迅《准风月谈·吃教》：“清朝人称八股为‘敲门砖’，因为得到功名，就如打开了门，砖即无用。”

qmz

敲門磚

常用成语

中性成语

偏正式；作宾语；比喻借以谋取名利的工具

偏正式成语

古代成语

垫脚石

a brick picked up to knock on the door and thrown away when it has served its purpose--a stepping-stone to success