doodadWiktionary 原文/ˈduːdæd/词源说明Unknown; attested since the 1880s. Compare earlier daud (“a piece of something”), later doohickey (“a thing (whose name one cannot recall)”), dialectal dad, dadge (“a large piece, chunk”).释义名词noun1originally USUsed to refer to something whose name one cannot recall: an unspecified device, gadget, part, or thing.