thingamabob
nounEtymology Alteration of thingumbob: obsolete thingum (from thing) + bob. Earliest citation from 1751, as thingumbobs.
1
Slang A thing or person whose actual name is unknown or forgotten.
- "The tin thingamabob," insisted Mr. Trigget with slow dignity. "Call it what you will. Its purpose is self-evident. It acts as a dispirator—a distributor, that is to say—"1923, Ernest Bramah [pseudonym; Ernest Brammah Smith], “(please specify the page)”, in The Eyes of Max Carrados, London: Grant Richards, →OCLC:
- Synonyms
- thingy, whatshisname