sweat it out

sweat it out (third-person singular simple present sweats it out, present participle sweating it out, simple past and past participle sweated it out or sweat it out)

1. (colloquial) To do hard physical exercise or work, and sweat as a result.
   • 1975, Bruce Springsteen, Born to Run:

     In the day we sweat it out on the streets of a runaway American dream
     At night we ride through the mansions of glory in suicide machines

2. (colloquial) To wait or endure anxiously.