What is another word for went off rocker?
Pronunciation: [wɛnt ˈɒf ɹˈɒkə] (IPA) 
The phrase "went off rocker" is used to describe someone who has lost their temper or gone crazy. However, there are several synonyms that can be used in its place, such as "flipped out," "lost it," "gone mental," "gone bonkers," "gone nuts," or "lost their marbles." These phrases all convey the same meaning and are useful for describing situations where someone's behavior is erratic and difficult to understand. Other phrases like "blew a fuse," "blew their top," "lost their cool," and "had a meltdown" can also be used to convey the same idea. Regardless of the phrase used, it's important to remember that mental health issues are a serious matter and should be treated with respect and compassion.
