因为自身原因，对于将要发生的事情感到恐惧
示例
A：I'm dead. I've lost her little dog.
B：God, I can't help you.
A：我死定了，我把她的小狗弄丢了。
B：天啊，我帮不了你。
A：I'm dead meat. I haven't reviewed Japanese yet, but we will have a test tomorrow.
B：Maybe you can work all night.
A：我死定了，明天就要日语测试了，我还没有复习呢。
B：也许你可以通宵看。