African-American vs bootlip

African-American

noun
  • A black American. 

  • Any black person. 

adj
  • Of or pertaining to the culture of African-American people. 

  • An American who is of Sub-Saharan African ancestry. 

  • American and black. 

  • Of Black African descent. 

bootlip

noun
  • A black person. 

  • A large lip, especially of a black person. 

  • The lip at the top end of the shaft of a boot. 

How often have the words African-American and bootlip occurred in a corpus of books? (source: Google Ngram Viewer )