Work, the what’s-its-name of the thingummy and the thing-um-a-bob of the what d’you-call-it.
– P. G. Wodehouse
Fortunately, I had all this wreckage to build a space swapping doodah-thingy-whatsit.
– The Sarah Jane Adventures (TV series)
English has several words for a thing or person whose name you don’t know or can’t remember or can’t be bothered to say. For example:
- what’s-her-name and what’s-his-name