# side piece

> English word · Noun

## Definitions
1. A person with whom someone already in a relationship carries on a physical affair (not emotional affair) without having the intention of forming a serious relationship. Not gender specific.

## Etymology
Jocular reexpression of the concept of a piece of ass on the side.

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