boa vs necktie

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. 

necktie

noun
  • A strip of cloth worn around the neck and tied in the front. See also bowtie. 

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