comic strip vs doodle

comic strip

noun
  • A series of illustrations, in sequence, often but not necessarily depicting something funny or satirical in nature. 

doodle

noun
  • A small mindless sketch, etc. 

  • Penis. 

  • Any crossbreed of a poodle with a different breed of dog. 

verb
  • To draw or scribble aimlessly. 

  • To drone like a bagpipe. 

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