# flash mob

> English word · Noun

## Definitions
1. A group of people who rapidly assemble, perform an unusual and seemingly pointless act, and then quickly disperse.

## Etymology
Perhaps from flash crowd, a term coined by Larry Niven in Flash Crowd (1973), a story about cheap teleportation in the future.

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