Definition of crackers in English:

crackers

adjective

British
informal
  • 1[predicative] Insane.

    ‘if Luke wasn't here I'd go crackers’
    • ‘He had great promise as a young writer in Britain before he went crackers over the paranormal.’
    • ‘Don't go crackers this Christmas.’
    • ‘Seriously impressed judges go crackers for Scottish cheddar.’
    mentally ill, severely mentally disordered, of unsound mind, certifiable, psychotic, schizophrenic
    View synonyms
    1. 1.1Extremely angry.
      ‘when he saw the mess he went crackers’
      • ‘And who really went crackers last week when Howard winked at Beulah in the elevator?’

Pronunciation:

crackers

/ˈkrakəz/