osculation vs smackeroo

osculation

noun
  • The action of kissing. 

  • A close contact. 

  • Determining whether a number is divisible by another by means of certain operations on its digits. 

  • A contact between curves or surfaces, at which point they have a common tangent. 

  • A kiss. 

smackeroo

noun
  • Synonym of kiss. 

  • Synonym of dollar. 

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