Search Result for "sandwich board":
Wordnet 3.0

NOUN (1)

1. signboard consisting of two hinged boards that hang front and back from the shoulders of a walker and are used to display advertisements; 



WordNet (r) 3.0 (2006):

sandwich board
    n 1: signboard consisting of two hinged boards that hang front
         and back from the shoulders of a walker and are used to
         display advertisements