# whosiewhatsit

> English word · Noun

## Definitions
1. A person or thing that one does not know the name of.

## Etymology
A concatenation of the phrases "Who's he? What's it?"

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/whosiewhatsit