fook vs shitfuck

fook

intj

  • Fuck. 

verb

  • To fuck. 

shitfuck

intj

  • Expressing dismay or discontent. 

noun

  • A stupid or otherwise undesirable person. 

adj

  • extremely/very bad 

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