pieman

• From Middle English pyman (attested as a surname), equivalent to pie +‎ -man.
• (caller in gambling games): Such games were once often run by sellers of pies as a sideline.

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pieman (plural piemen)

1. A man who sells pies.
   • 1886, James Orchard Haliwell, The Nursery Rhymes of England, 5th edition, page 31:

     Simple Simon met a pieman / Going to the fair; / Says Simple Simon to the pieman, / “Let me taste your ware.”

2. (UK, slang, obsolete) The man who called heads or tails in street gambling games of coin tossing.

• John Camden Hotten (1873), The Slang Dictionary