gizmo

Plural: gizmos

Noun

• An informal term for a gadget or device; a gismo.
• something unspecified whose name is either forgotten or not known
  • "there may be some great new gizmo around the corner that you will want to use"
• a device or control that is very useful for a particular job
• Something, generally a device, for which one does not know the proper term.

Examples

• He pulled out a tiny gizmo from his pocket, only to reveal it was just a tile holder.

Synonyms

appliance, contraption, contrivance, convenience, doodad, doohickey, doojigger, gadget, gimmick, gismo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget