smackhead vs wigger

smackhead

noun
  • A person who regularly uses heroin. 

wigger

noun
  • A non-black person of any race considered to be inauthentically appropriating black culture and behavior. 

  • A maker of wigs. 

  • A white person, typically young and male, considered to be overly infatuated with African-American or (UK) Afro-Caribbean culture, a white race traitor or cultural appropriator. 

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