2HARM/BE BAD FORsomething that is likely to cause you very serioustrouble, or even your death 可能帶來極大麻煩[死亡]的事
By indulging in casual sex, many teenagers could be signing their own death warrants.
許多青少年随意與人發生性關系並沉迷於此,這等於在自尋死路。
Examples from the Corpus
death warrant• Magnets are a death warrant to computer disks.• If he does, he is signing his death warrant.• Perhaps that was his death warrant.• Although he did not sign the king's death warrant, he was present at his execution.• I have already signed the death warrant.