gull vs pull the wool over someone's eyes

gull

verb
  • To deceive or cheat. 

  • To trick and defraud. 

  • To mislead. 

noun
  • A seabird of the genus Larus or of the family Laridae. 

  • Any of various pierid butterflies of the genus Cepora. 

  • One easily cheated; a dupe. 

  • A cheating trick; a fraud. 

pull the wool over someone's eyes

verb
  • To deceive someone. 

How often have the words gull and pull the wool over someone's eyes occurred in a corpus of books? (source: Google Ngram Viewer )