four-flush vs gull

four-flush

verb
  • To bluff. 

  • To attempt to pass off a four-flush as a flush. 

noun
  • Four cards of the same suit. 

gull

verb
  • To trick and defraud. 

  • To deceive or cheat. 

  • 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. 

How often have the words four-flush and gull occurred in a corpus of books? (source: Google Ngram Viewer )