Definition of doodah noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈduːdɑː//
; NAmE NAmE//ˈduːdɑː//
(British English) (North American English doodad
BrE BrE//ˈduːdæd//
; NAmE NAmE//ˈduːdæd//
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a small object whose name you have forgotten or do not know Word Originearly 20th cent. (in the phrase all of a doodah): perhaps from the refrain of a song called Camptown Races.