eat dirt
US /iːt dɜːrt/
UK /iːt dɜːrt/

1.
屈辱を味わう, 恥をかく
to be humbled or humiliated, especially by being forced to accept insults or bad treatment
:
•
After his arrogant behavior, he had to eat dirt when his plan failed.
傲慢な態度をとった後、計画が失敗したとき、彼は屈辱を味わうことになった。
•
The politician had to eat dirt after his scandal was exposed.
スキャンダルが暴露された後、その政治家は屈辱を味わうことになった。