Synonyms for Thingamajig:

• n.

  •article (noun)
  • sub stances,
  • sub-stances,
  • sub-stance,
  • dojiggers,
  • sub stance.
  •contraption (noun)
  • device.
  •dohickey (noun)
  • dohickey.
  •gimmick (noun)
  • gimmick.
  •gizmo (noun)
  • mechanical devices.
  •gubbins (noun)
  • gubbins.
  •hickey (noun)
  • hickey.
  •thingamajig (noun)
  • thingmajig,
  • thingumajig,
  • thingumabob,
  • thingummy,
  • thingmabob.

• Other synonyms:

  •plaything
  • trinket.