scum of the earth vs termite

scum of the earth

noun
  • An undesirable individual; the worst type of person or people. 

termite

noun
  • A contemptible person. 

  • A white-bodied, wood-consuming insect of the infraorder Isoptera, in the order Blattodea. 

verb
  • Of a chimpanzee: to catch termites by inserting a stick or vine into their nest and waiting for them to climb up it. 

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