gunk vs muddiness

gunk

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

  • A member of the gunk subculture. 

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

verb
  • To soil or make dirty 

muddiness

noun
  • The characteristic of being muddy. 

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