Eat your words

Eat your words: admitir que o que falou estava errado, “engolir o que falou”

“The president was forced to eat his words after it was shown that what he'd said wasn't true.”

“Martina said I'd never win a gold medal, but now that I have she'll have to eat her words.”

Eat your words

Eat your words: Aceitar publicamente que você estava errado sobre algo que você falou /confessar que estava errado a respeito de algo / admitir um erro

“You shouldn't say that to me. I'll make you eat your words.”

 “John was wrong about the election and had to eat his words.”

“I may eat my words, but I don't think Holly is going to be able to do this.” (www.thefreedictionary.com)