We don't have synonyms for dodad yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are doodad, hodad and dodaad.
(n) :
(rare) Alternative spelling of doodad. [(originally US) Used to refer to something whose name one cannot recall: an unspecified device, gadget, part, or thing.]
(n) :
(rare) Alternative spelling of doodad. [(originally US) Used to refer to something whose name one cannot recall: an unspecified device, gadget, part, or thing.]