Meaning : Something unspecified whose name is either forgotten or not known.
Example :
She eased the ball-shaped doodad back into its socket.
There may be some great new gizmo around the corner that you will want to use.
Synonyms : doodad, doohickey, doojigger, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallum, whatsis, widget