eat someone alive
吞噬某人，使其彻底失败或受到严厉的批评或惩罚
口语·表示严厉批评或彻底击败
英文释义
to criticize or defeat someone harshly and thoroughly
例句
If you mess up that presentation, the boss will eat you alive.
典故来源
源自动物捕食的比喻，20世纪中期用于形容严厉批评或彻底击败。