Lose it

When my dad found out I had failed the exams, he just lost it.

When she heard the news about her cousin's death, she lost it.

When the teacher's chair broke, the class completely lost it.

When you think about all she's done for the sport, it's kind of sad, but she's completely lost it over the past few years.

Even then, she defended everything she had sought to achieve, saying she had “the right policies at the wrong time”. “That’s when I thought ‘she’s totally lost it’,” said a former aide.

‘I’m Inspector Harper, Leeds police. Where did you lose it?’ / ‘Lose it?’ He laughed. ‘I’d never lose this. It was stolen.’