Definition of have it out in English:

have it out

phrase

informal
  • Attempt to resolve a contentious matter by confronting someone.

    ‘give her the chance of a night's rest before you have it out with her’
    • ‘The bride finally snapped, had it out with her mother, and their relationship got ugly for months.’
    • ‘I had it out with the dealer, and they still refused to modify the spring.’