Crow是“乌鸦”，eat crow是什么意思呢？请看对话：

    A: House Speaker John Boehner once announced, “We are going to make Obama a one-term president.”

    B: But after Obama won a second term, Congress had to eat crow.

    Note: Rudyard Kipling used this concept as a central metaphor in his short story “The Strange Ride of Morrowbie Jukes” (1885). In the story, Morrowbie Jukes, a European colonist in India, falls into a sand-pit from which he cannot escape. A native Indian is also trapped who catches wild crows and eats them, but Morrowbie in his pride declares, “I shall never eat crow!” After days of nothing to eat, his hunger finally force him to do what he swore he would never do: literally eat crow. Crow is a carnivore bird, and crow meat tastes bad. By folklore, people are believed to hate to eat crow meat unless they have to. Figuratively, if someone is forced to eat crow, they’re forced to admit to their mistake.