sandwichman

/ˈsændwɪtʃˌmæn/
noun
  1. A person who walks around in public carrying a sandwich board (two large signs hung over the shoulders, one on the chest and one on the back) to advertise something.
    • A sandwichman stood on the corner promoting the new pizza place.
    • The store hired a sandwichman to walk through the downtown area with their sale signs.
    • In the old days, a sandwichman was a common sight outside theaters and shops.
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