What does the word humbug mean?

Usage examples for humbug

  1. Your bank, gentlemen, said he, is a humbug. – Quodlibet by John P. Kennedy
  2. " Oz can do some good tricks, humbug or no humbug," announced Zeb, who was now feeling more at ease. – Dorothy and the Wizard in Oz by L. Frank Baum.
  3. You're a humbug, Ayre! – Father Stafford by Anthony Hope