pucker vs trouser

pucker

noun
  • A fold or wrinkle. 

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

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

trouser

noun
  • Of or relating to trousers. 

  • A pair of trousers. 

verb
  • To secretively steal (an item or money) for personal use. 

  • To put (money) into one's trouser pocket; to pocket. 

  • To take and keep (something, especially money, that is not one's own); to pocket. 

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