push off vs skedaddle

push off

verb
  • To go away; to get lost. 

  • To delay, postpone, put off, push back. 

  • to commit a foul by pushing against an opponent to both accelerate more quickly and push the opponent in the opposite direction. 

skedaddle

verb
  • To move or run away quickly. 

  • To spill; to scatter. 

noun
  • The act of running away; a scurrying off. 

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