Definition of crackers in English:

adjective

• 1British informal Insane.

  ‘if Luke wasn't here I'd go crackers’

  More example sentences

  • ‘Don't go crackers this Christmas.’
  • ‘Seriously impressed judges go crackers for Scottish cheddar.’
  • ‘He had great promise as a young writer in Britain before he went crackers over the paranormal.’

  Synonyms

  mentally ill, severely mentally disordered, of unsound mind, certifiable, psychotic, schizophrenic

  1. 1.1Extremely angry.
     ‘when he saw the mess he went crackers’
     More example sentences

     • ‘And who really went crackers last week when Howard winked at Beulah in the elevator?’
     Synonyms

     mad, crazy