# if it's yellow let it mellow

> English word · Phrase

## Definitions
1. In order to save water, do not flush the toilet every time you urinate.

## Etymology
A short version of "if it's yellow let it mellow, if it's brown flush it down".

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