eye-opener vs shocker

eye-opener

noun
  • A startling or shocking revelation. 

  • A strong alcoholic beverage, especially one consumed in the morning. 

  • Something that causes the eyes to open, or that opens the eyes. 

  • An attractive woman. 

  • Something that provides a sudden insight, or makes something clear that was previously mysterious. 

shocker

noun
  • Sexual act related to the shocker hand gesture: two in the pink, one in the stink. 

  • A device for giving electric shocks. 

  • Synonym of stooker. 

  • One who or that which shocks or startles. 

  • A particular hand gesture with a sexual connotation. 

  • Something done really badly. 

How often have the words eye-opener and shocker occurred in a corpus of books? (source: Google Ngram Viewer )