boink vs notch on one's bedpost

boink

noun
  • Sexual intercourse. 

  • A real-world social gathering of computer users. 

  • A sound of something hitting or bouncing off a surface, similar to plunk, but with more connotations of bounciness. 

verb
  • To hit or strike. 

  • To have sexual intercourse (with); to bonk. 

notch on one's bedpost

noun
  • A sexual conquest; a casual sexual partner. 

How often have the words boink and notch on one's bedpost occurred in a corpus of books? (source: Google Ngram Viewer )