What does "dupe" mean?

Dupe: One who has been deceived or who is easily deceived; a gull; as, the dupe of a schemer.

Additional senses

  1. 2.To deceive; to trick; to mislead by imposing on one's credulity; to gull; as, dupe one by flattery. Ne'er have I duped him with base counterfeits. Coleridge.

Sources