# head down, bum up

> English word · Adverb

## Definitions
1. Hard at work; preparing oneself to work hard.

## Etymology
From an assumed position of strenuous work. Compare nose to the grindstone.

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