cockroach vs loser

cockroach

noun
  • A person or a member of a group of people regarded as undesirable and rapidly procreating. 

  • A Tutsi. 

  • A person from New South Wales. 

  • A black or brown straight-winged insect of the order Blattodea. 

loser

noun
  • A contemptible or unfashionable person. 

  • A person convicted of a crime, especially more than once. 

  • One who or that which loses something, such as extra weight, car keys, etc. 

  • A person who is frequently unsuccessful in life. 

  • A person who loses; one who fails to win or thrive. 

  • A losing proposition, one that is likely to lose or already has lost (such as a losing bet or, analogously, a predictably fruitless task or errand). 

  • Something of poor quality. 

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