thingumabob

/ ˈθɪŋəməˌbɒb /

noun

1. informal.
   a person or thing the name of which is unknown, temporarily forgotten, or deliberately overlooked Alsothingumajigthingamajigˈθɪŋəməˌdʒɪɡthingummyˈθɪŋəmɪ

Word History and Origins

Origin of thingumabob¹

C18: from thing ¹, with humorous suffix

Example Sentences

It had just been a game they had played while looking for the thingumabob.

From Project Gutenberg

He smiled a sudden appreciation of what he was doing—trying to excuse his jilting of Henrietta—an event not far off if she persisted in holding him to the thingumabob foolishness.

From Project Gutenberg

"Oh, we've forgotten the thingumabob," he exclaimed, "come help me find that."

From Project Gutenberg

Looking for thingumabobs, planning popcorn feasts, having lots of fun and in a way that was intelligent.

From Project Gutenberg

The girl's wide-eyed tenderness had irritated and frightened him after the incident in the kitchen when they had gone searching for the thingumabob.

From Project Gutenberg