thingum

  • 91thingamajig — thing•a•ma•jig or thing•u•ma•jig [[t]ˈθɪŋ ə məˌdʒɪg[/t]] n. cvb inf a thing for which the speaker does not know or has forgotten the name • Etymology: 1870–75; thingum or thingummy (based on thing) +jig I …

    From formal English to slang

  • 92thingamajig — or thingumajig [thiŋ′ə məjig΄] n. [extension of older thingum,THING1] Informal any device, contrivance, gadget, etc.: jocular substitute for a name not known or temporarily forgotten …

    English World dictionary