blacksnake vs lather

blacksnake

verb
  • To whip with a long, tapering whip. 

noun
  • A long, tapering whip. 

  • A penis, especially a black penis. 

lather

verb
  • To beat or whip. 

  • To form lather or froth, as a horse does when profusely sweating. 

  • To cover with lather. 

noun
  • A state of agitation. 

  • The foam made by rapidly stirring soap and water. 

  • Foam from profuse sweating, as of a horse. 

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