# Bad Thing

> English word · Noun

## Definitions
1. An action that yields undesirable results to its subject.

## Etymology
Originally from the 1930 book 1066 And All That by W.C. Sellar & R.J. Yeatman, popularized through hacker culture.

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