Usually means: Gadget or object, name forgotten.
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We found 12 dictionaries that define the word thingumabob:

General (10 matching dictionaries)
  1. thingumabob: Merriam-Webster
  2. thingumabob: Oxford Learner's Dictionaries
  3. thingumabob: Collins English Dictionary
  4. thingumabob: Vocabulary.com
  5. thingumabob: Wiktionary
  6. thingumabob: Dictionary.com
  7. thingumabob: Rhymezone
  8. thingumabob: FreeDictionary.org
  9. thingumabob: Mnemonic Dictionary
  10. thingumabob: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. thingumabob: Encyclopedia

Slang (1 matching dictionary)
  1. thingumabob: Green’s Dictionary of Slang

(Note: See thingumabobs as well.)

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Definitions from Wiktionary (Thingumabob)

▸ noun:  Alternative form of thingamabob [(slang) A thing or person whose actual name is unknown or forgotten.]

Similar:
thingmajig, doodad, thingamabob, thingummy, thingumajig, dohickey, dojigger, thingamajig, thingmabob, doohickey, more...

Opposite:
whatchamacallit, doohickey, gadget, contraption

▸ Words similar to thingumabob

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▸ Popular adjectives describing thingumabob

▸ Words that often appear near thingumabob

▸ Rhymes of thingumabob

▸ Invented words related to thingumabob

Similar:
thingmajig, doodad, thingamabob, thingummy, thingumajig, dohickey, dojigger, thingamajig, thingmabob, doohickey, more...

Opposite:
whatchamacallit, doohickey, gadget, contraption



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