admit one has been wrong in sth. one has said收回自己說過的話
Dick insisted the United States was larger than China but he had to eat his words when Beth showed him his map. 狄克堅持說美國比中國大,但當貝思給他看地圖時,他不得不收回他的話。
Don't boast too much. You will be forced to eat your words one day. 不要吹得太厲害,總有一天你不得不收回你說的話。