pretzelize vs pucker

pretzelize

verb
  • To bend, twist, or contort; to pretzel. 

  • To deform a simple linear idea into a superfluously complex explanation. 

pucker

verb
  • To pinch or wrinkle; to squeeze inwardly, to dimple or fold. 

noun
  • A state of perplexity or anxiety; confusion; bother; agitation. 

  • A fold or wrinkle. 

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