rack off vs screw you

rack off

verb
  • Used other than figuratively or idiomatically: see rack, off. 

  • To go away; to sod off. 

screw you

verb
  • Used other than figuratively or idiomatically: see screw, you. 

intj
  • less offensive version of fuck you. 

noun
  • An act of defiance and contempt. 

How often have the words rack off and screw you occurred in a corpus of books? (source: Google Ngram Viewer )