boa vs handkerchief

boa

noun
  • A type of long scarf; typically made from synthetic or real feathers (or occasionally fur), and usually worn by being draped across the shoulders with the ends hanging low, sometimes also with a loop around the neck. 

  • Any of a group of large American snakes, of the genus Boa, subfamily Boinae, or family Boidae, including the boa constrictor and the emperor boa of Mexico. 

handkerchief

noun
  • A piece of cloth shaped like a handkerchief to be worn about the neck; a neckerchief or neckcloth. 

  • A piece of cloth, usually square and often fine and elegant, carried for wiping the face, eyes, nose or hands. 

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