Thingummyjigs

Part of speech: noun

Definitions

1. An informal term for an unspecified object or item that one cannot easily name or describe
2. a placeholder for something whose exact name is forgotten or unclear
3. often used in conversation to refer to various gadgets or knick-knacks without being specific

Etymology: The singular is itself a blend of "thingummy," a colloquial stand-in for an unnamed thing, and "jig," a word with a long history of meaning a lively dance or a small device. Put together, the pair gives the sense of a gadget or contraption whose proper name is beyond recall. Plural forms like this one simply add the regular "-s" to the singular, so the plural here shares the same origin as the singular it describes.

Synonyms: thingamajigs, gizmos, gadgets