beat it vs pound sand

beat it

verb
  • To leave; to go away. 

  • Used other than figuratively or idiomatically: see beat, it. 

  • To masturbate, usually a man of himself. 

pound sand

verb
  • To go away; get lost; go to hell. 

  • To engage in a futile activity. 

How often have the words beat it and pound sand occurred in a corpus of books? (source: Google Ngram Viewer )