boink vs love up

boink

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

  • To hit or strike. 

noun
  • A real-world social gathering of computer users. 

  • Sexual intercourse. 

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

love up

verb
  • To demonstrate affection for; treat in a loving way. 

  • To make love to. 

  • To demonstrate affection (on somebody). 

  • To accept; to love wholeheartedly. 

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