shuffler

noun4

1. •
   A person who shuffles.
2. •
   A machine or algorithm that shuffles.
3. •
   Any of the three common American scaup ducks.
4. •
   (old-fashioned) A trickster.

   • 'You—you're a shuffler, sir,' gasped the furious doctor, 'a poltroon—a coward—a liar—a—a—will nothing induce you to give me your card, sir!' — 1836