1. sandwich board - Noun
2. sandwich board - Verb
signboard consisting of two hinged boards that hang front and back from the shoulders of a walker and are used to display advertisements
Source: WordNetWHY SO SPECIAL: Unexpected wine treats that transform the way you perceive a region (I am now a walking sandwich board for aged Aussie riesling and truly "get" micro-regionality within the Barossa). Source: Internet
The sandwich board reads “Roses,” in rough hand lettering, “Only $6 a bunch!” Source: Internet