eat humble pie
US /iːt ˈhʌm.bəl paɪ/
UK /iːt ˈhʌm.bəl paɪ/

1.
屈辱を味わう, 非を認める
to admit that you were wrong and apologize, especially in a humiliating way
:
•
After boasting about his victory, he had to eat humble pie when he lost the game.
勝利を自慢した後、彼は試合に負けて屈辱を味わうことになった。
•
The CEO had to eat humble pie and apologize to the employees for his poor decisions.
CEOは屈辱を味わい、誤った決定について従業員に謝罪しなければならなかった。