Definition of sweat it out in English:

sweat it out

phrase

informal
  • 1Endure an unpleasant experience, typically one involving physical exertion in great heat.

    ‘about 1,500 runners are expected to sweat it out in this year's run’
    1. 1.1Wait in a state of extreme anxiety for something to happen or be resolved.
      ‘he sweated it out until the lab report was back’