blindside vs bop

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. 

bop

verb
  • To strike gently or playfully. 

  • To walk the streets while socializing. 

  • To dance to this music, or any sort of music with a marked beat. 

  • To have sex. 

  • To fellate. 

noun
  • A very light smack, blow or punch. 

  • A party hosted by a college's JCR or MCR. 

  • A style of improvised jazz from the 1940s. 

  • A good song. 

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