jo vs sugar baby

jo

noun
  • Darling, sweetheart. 

  • The staff used in the Japanese martial art of jodo or jojutsu. 

sugar baby

noun
  • A term of endearment; sweetheart. 

  • The younger recipient (usually female or a bottom) of interest from a sugar daddy or sugar mama, especially financial and romantic in an intergenerational relationship 

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