stark staring mad vs wacko

stark staring mad

adj

  • Completely insane; out of one's mind. 

wacko

adj

  • Amusingly eccentric or irrational. 

noun

  • An amusingly eccentric or irrational person. 

How often have the words stark staring mad and wacko occurred in a corpus of books? (source: Google Ngram Viewer )