laze vs sit on one’s butt

laze

verb
  • To be lazy, waste time. 

  • To pass time relaxing; to relax, lounge. 

noun
  • An instance of lazing. 

  • Laziness. 

  • Acidic steam created when super-hot lava contacts salt water. 

sit on one’s butt

How often have the words laze and sit on one’s butt occurred in a corpus of books? (source: Google Ngram Viewer )