obstreperous vs ready for a fight

obstreperous

adj
  • Stubbornly defiant; disobedient; resistant to authority or control, whether in a noisy manner or not. 

  • Attended by, or making, a loud and tumultuous noise; boisterous. 

ready for a fight

How often have the words obstreperous and ready for a fight occurred in a corpus of books? (source: Google Ngram Viewer )