pucker vs scrunch up

pucker

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

  • A fold or wrinkle. 

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

scrunch up

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