squirm vs zig

squirm

noun
  • A twisting, snakelike movement of the body. 

verb
  • To twist one's body with snakelike motions. 

  • To twist in discomfort, especially from shame or embarrassment. 

  • To evade a question, an interviewer etc. 

zig

noun
  • A sudden or sharp turn or change of direction. 

verb
  • To make such a turn. 

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