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1. Something whose name is unknown or forgotten.
2. A person regarded as stupid.
3. Vulgar Slang The penis.
[Dutch dinges, whatchamacallit, from German Dings, from Middle High German dinges, genitive of dinc, thing, from Old High German ding, thing, assembly, case, thing.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
US someone or something whose name is either unknown or forgotten
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
n., pl. -us•es. Informal.
a gadget, device, or object whose name is unknown or forgotten.
[1870–75; < Dutch dinges or its source, German Dinges, probably orig. genitive, with partitive value, of Ding thing1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.