barn dance vs throw shapes

barn dance

verb
  • To take part in barn dancing. 

noun
  • A type of set step routine dancing, such as square dance. 

throw shapes

verb
  • To dance. 

  • To act tough or put up a front. For example, to threaten a person by making "karate chops" at them, without actually doing harm or knowing karate. 

How often have the words barn dance and throw shapes occurred in a corpus of books? (source: Google Ngram Viewer )