# thingum

> English word · Noun

## Definitions
1. Synonym of thingummy.

## Etymology
Perhaps originally from the gradational compound thingum-thangum (based on thing) with the same terminal syllable as in crinkum-crankum, harum-scarum, trinkum-trankum.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thingum