from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Informal Something difficult to classify or whose name has been forgotten or is not known.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Something that one does not know the name of.

from The Century Dictionary and Cyclopedia

  • n. A thingumbob.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. something unspecified whose name is either forgotten or not known


Alteration of obsolete thingum (from thing) + jig1.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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