froth at the mouth vs outrage

froth at the mouth

verb
  • To rage, to vent one's anger. 

  • To spew saliva as froth. 

outrage

verb
  • To cause or commit an outrage upon; to treat with violence or abuse. 

  • To inspire feelings of outrage in. 

noun
  • The resentful, indignant, or shocked anger aroused by such acts. 

  • An excessively violent or vicious attack; an atrocity. 

  • An offensive, immoral or indecent act. 

How often have the words froth at the mouth and outrage occurred in a corpus of books? (source: Google Ngram Viewer )