disagreeable vs just for the heck of it

disagreeable

noun
  • Something or someone displeasing; anything that is disagreeable. 

adj
  • Causing repugnance; unpleasant to the feelings or senses; displeasing. 

just for the heck of it

How often have the words disagreeable and just for the heck of it occurred in a corpus of books? (source: Google Ngram Viewer )