負荊請罪

负荆请罪
jīngqǐngzuì
  1. lit. to bring a bramble and ask for punishment (idiom)
  2. fig. to offer sb a humble apology

CEDICT

to offer someone a humble apology, requesting punishment and forgiveness

Wiktionary

戰國趙國大將廉頗上卿藺相如不和社稷著想每每退讓廉頗得知自己無知袒衣背負荊條賓客藺相如居所謝罪史記廉頗藺相如》。後世用來形容對方承認請求責罰原諒

重編國語辭典

對方承認錯誤請求責罰原諒

維基詞典

Entry Composition