clump vs hip-hop

clump

verb
  • To strike; to beat. 

  • To gather in dense groups. 

  • To form clusters or lumps. 

  • To walk with heavy footfalls. 

noun
  • A thick group or bunch, especially of bushes or hair. 

  • A small group of trees or plants. 

  • A cluster or lump; an unshaped piece or mass. 

  • A dull thud. 

  • A thick addition to the sole of a shoe. 

  • The compressed clay of coal strata. 

hip-hop

verb
  • To move by hopping or with a hopping motion. 

  • To perform hip-hop music. 

noun
  • An Afro-American urban youth culture based on rap music, breakdancing etc. 

  • A form of popular and dance music featuring strong percussion and a powerful rhythm, usually accompanied by rapping. 

How often have the words clump and hip-hop occurred in a corpus of books? (source: Google Ngram Viewer )