backslash vs whack

backslash

noun
  • Used erroneously in reference to, or in reading out, the ordinary slash, that is, the punctuation mark /. 

  • The punctuation mark \. 

  • |passage= […] I was trying to find a web-site for which I had been given the following address: http://www.isop.ucla.edu/pacrim/pubs/korjournal.htm. […] I began to work backwards, removing first the last part of the address following the last backslash (/korjournal.htm).}} 

verb
  • To escape (a metacharacter) by prepending a backslash that serves as an escape character, thereby forming an escape sequence. 

whack

noun
  • The backslash, ⟨ \ ⟩. 

  • An attempt, a chance, a turn, a go, originally an attempt to beat someone or something. 

  • The sound of a heavy strike. 

  • The strike itself. 

  • The stroke itself, regardless of its successful impact. 

verb
  • To kill, bump off. 

  • To surpass; to better. 

  • To beat convincingly; to thrash. 

  • To hit, slap or strike. 

  • To share or parcel out (often with up). 

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