“eat one's for breakfast”字面意思“把某人作为早餐”，其实不然，它还可以表示“轻易打败某人；不费吹灰之力制服”的意思。

【例句】
He can challenge me all he wants—I'm not worried! I have him for breakfast!
他可以任意挑战我，我并不担心，我不费吹灰之力可以打败他。

Their soccer team is so good that they will eat our team for breakfast.
他们的足球队如此厉害以至于他们可以不费吹灰之力击败我们。