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Synonyms
dingus, doodad, doohickey, hickey, thingamabob, thingamajig (or thingumajig), whatchamacallit, whatnot, whatsit (also whatsis)
1796, in the meaning defined above
alteration of earlier thingum
More from Merriam-Webster on thingummy
Thesaurus: All synonyms and antonyms for thingummy
See Definitions and Examples
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