self-destruct
verb [ I ] uk/ˌself.dɪˈstrʌkt/ us/ˌself.dɪˈstrʌkt/
（尤指按既定程序）自毁，自爆
If a machine or weapon self-destructs, it destroys itself, especially in a way that is planned
An investigation is underway after a missile self-destructed shortly after it was launched. 一枚导弹发射后不久即自毁，对此事的调查正在进行中。
(the/someone's) self-destruct button （指人）会导致自我毁灭的特征
a characteristic in a person that makes them likely to fail because of their own actions
At least he reached the semifinal before hitting the self-destruct button. 至少他在自毁前程之前杀入了半决赛。