deejay vs shock jock

deejay

noun

  • A disc jockey. 

verb

  • To play music as a disc jockey. 

  • To perform as a disc jockey. 

shock jock

noun

  • A deliberately offensive or provocative talk show host. 

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