brawl vs duke it out

brawl

verb
  • To engage in a brawl; to fight or quarrel. 

  • To create a disturbance; to complain loudly. 

  • To pour abuse on; to scold. 

  • Especially of a rapid stream running over stones: to make a loud, confused noise. 

noun
  • A disorderly argument or fight, usually with a large number of people involved. 

duke it out

verb
  • To argue heavily or at length. 

  • To fight, especially with the fists. 

How often have the words brawl and duke it out occurred in a corpus of books? (source: Google Ngram Viewer )