goof off vs procrastinate

goof off

verb
  • To dawdle, lollygag; to waste time aimlessly or engage in idle activity or inactivity. 

procrastinate

verb
  • To put off; to delay (something). 

  • To delay taking action; to wait until later. 

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