The idiom "go off the deep end" means to suddenly become very angry, upset, or irrational about something. It can also mean to behave in an extreme or reckless way, often without thinking about the consequences.
For example, if someone is very calm and collected, but suddenly starts shouting and throwing things, you could say that they have "gone off the deep end." Similarly, if someone quits their job without any backup plan, you could say that they have "gone off the deep end" in terms of their career choices.
This idiom is often used to describe situations where someone has lost control of their emotions or actions. It can also be used to warn someone not to do something that might have serious consequences.
In summary, "go off the deep end" means to behave in an extreme or irrational way, often without considering the consequences.
• After working long hours for weeks, John went off the deep end and quit his job without a backup plan. (work situation)
• The coach went off the deep end when he found out that his star player had been using performance-enhancing drugs. (sports situation)
• The CEO went off the deep end and fired his entire management team after a minor setback in the company's growth. (business situation)
• The politician went off the deep end during the debate and started insulting his opponent. (political situation)
• I think my friend will go off the deep end if she doesn't find her phone soon. (basic situation)
• My sister went off the deep end when I told her I lost her favorite book. (family situation)