bop vs whack

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. 

whack

verb
  • To hit, slap or strike. 

  • To kill, bump off. 

  • To surpass; to better. 

  • To beat convincingly; to thrash. 

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

noun
  • 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 backslash, ⟨ \ ⟩. 

  • The stroke itself, regardless of its successful impact. 

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