Lose it.
[Slang] LOSE IT. - Understanding Emotional Expressions in English
To lose control.
When someone says they "lose it," they’re referring to losing control over their emotions, often resulting in yelling, crying, or other strong reactions. This slang is typically used in high-stress situations where the person can no longer maintain composure.
Example Sentences
He just lost it when he heard the news!
He lost control of his emotions when he heard the news.
Sometimes, I just lose it and laugh uncontrollably.
Sometimes, I completely lose my composure and laugh uncontrollably.
It's scary how calm she remains while everyone else around her loses it.
It's alarming how she stays calm while everyone else around her loses control.
