grime vs gunk

grime

verb
  • To begrime; to cake with dirt. 

noun
  • Dirt, grease, soot, etc. that is ingrained and difficult to remove. 

  • A genre of urban music that emerged in London, England, in the early 2000s, primarily a development of UK garage, dancehall, and hip hop. 

gunk

verb
  • To soil or make dirty 

noun
  • A member of the gunk subculture. 

  • Dirt or grime; any vague, messy, or unknown substance. 

  • A subculture of 21st century American males, combining elements of modern gothic culture with punk rock. 

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