burlesque vs gag show

burlesque

verb
  • To make a burlesque parody of. 

  • To ridicule, or to make ludicrous by grotesque representation in action or in language. 

noun
  • A ludicrous imitation; a caricature; a travesty; a gross perversion. 

  • A derisive art form that mocks by imitation; a parody. 

  • A variety adult entertainment show, usually including titillation such as striptease, most common from the 1880s to the 1930s. 

gag show

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