a decorative embellishment; trinket; bauble: a dress covered with doodads.
a gadget; device: a kitchen full of the latest doodads.
contraption, doohickey, object, widget, thing, contrivance, thingamajig, gismo, whatchamacallit, thingamabob
Origin of doodad
First recorded in 1900–05; gradational compound based on dial. dad piece, flake
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
"unnamed thing," 1905, chiefly U.S., a made-up word (cf. doohickey).
Online Etymology Dictionary, © 2010 Douglas Harper