frig vs touch oneself

frig

verb
  • to masturbate 

  • to mess or muck (about, around etc.) 

  • to fuck; to have sex. 

  • to make a temporary alteration to something, to fudge, to manipulate 

noun
  • A temporary modification to a piece of equipment to change the way it operates (usually away from as originally designed). 

  • A fuck. 

  • An act of frigging. 

  • Dated spelling of fridge. 

touch oneself

verb
  • To masturbate. 

  • Used other than figuratively or idiomatically: see touch, oneself. 

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