In everyday English, ballistic is the anger word in the phrase go ballistic: to suddenly become very angry, as if you have exploded.

In everyday English在日常英文裡，in the phrase go ballistic在go ballistic這個片語裡，ballistic is the anger wordballistic是表示生氣的字：to suddenly become very angry意思是突然變得非常生氣，as if you have exploded好像爆炸了一樣。

A parent goes ballistic about a dent in the car. A supporter goes ballistic at a referee.

about a dent in the car因為車子有個凹痕，A parent家長 goes ballistic就會氣炸。at a referee對著裁判，A supporter球迷 goes ballistic也會氣炸。

It is informal. You would not put it in a polite letter or a careful report.

It is informal這是口語用法。You would not put it你不會用它 in a polite letter or a careful report在客氣的信件或正式的報告裡。

You almost always need that verb go; people do not usually say “he was ballistic” the way they say “he was angry.” Though actually, the older meaning is still very much alive: ballistic describes objects that are fired or thrown through the air, especially a weapon that flies a set path after it is launched — a ballistic missile. The anger meaning borrows that picture of something shooting off.

You almost always need that verb go你幾乎都要搭配go這個動詞才行；people do not usually say 'he was ballistic'一般不會說『he was ballistic』 the way they say 'he was angry'像說『he was angry』那樣。Though actually不過，the older meaning is still very much alive這個字比較舊的意思其實還很常用：ballistic describes objects that are fired or thrown through the air用來形容被發射或拋出、在空中飛行的物體，especially a weapon that flies a set path after it is launched尤其是發射後會沿著固定路徑飛行的武器——a ballistic missile像彈道飛彈。The anger meaning生氣的意思 borrows就是借用了 that picture of something shooting off東西射出去的畫面。

A few people also say go ballistic for wild excitement, but anger is the usual reading. The word does not come from the round ball you play with, and it has nothing to do with ballet.

A few people also say go ballistic也有少數人說go ballistic for wild excitement表示極度興奮，but anger is the usual reading但一般還是理解成生氣。The word does not come from the round ball you play with這個字不是來自你拿來玩的那種圓球，and it has nothing to do with ballet也跟ballet芭蕾沒有關係。