outrage vs slap in the face

outrage

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. 

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

  • To inspire feelings of outrage in. 

slap in the face

noun
  • Something unexpectedly said or done which causes shock or offense; an insult, rebuke, or rebuff. 

  • Used other than figuratively or idiomatically: see slap, in, the, face. 

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