blindside vs blow away

blindside

verb
  • To attack (a person) on his or her blind side. 

  • To catch off guard; to take by surprise. 

noun
  • The blindside flanker, a position in rugby union, usually number 6. 

  • A person's weak point. 

  • A tram/train driver's field of blindness around a tram (trolley/streetcar) or a train; the side areas behind the tram/train driver. 

  • The space on the side of the pitch with the shorter distance between the breakdown/set piece and the touchline; compare openside. 

  • A driver's field of blindness around an automobile; the side areas behind the driver. 

blow away

verb
  • To kill (someone) by shooting them with a firearm. 

  • To disperse or to depart on currents of air. 

  • Used other than figuratively or idiomatically: see blow, away. 

  • To overwhelm. 

  • To cause to go away by blowing, or by wind. 

  • To cause to go away, to get rid of 

  • To flabbergast; to impress greatly. 

  • To delete (data, files, etc.). 

How often have the words blindside and blow away occurred in a corpus of books? (source: Google Ngram Viewer )