battle royal vs tussle

battle royal

noun
  • A heated discussion or debate. 

  • A fight involving three or more individuals, teams, or factions; fought until one person, team, or faction is left standing. 

tussle

noun
  • A conflict, an argument, a disagreement. 

  • A physical fight or struggle. 

verb
  • To have a tussle. 

How often have the words battle royal and tussle occurred in a corpus of books? (source: Google Ngram Viewer )