work flat out

/wɜːrk flæt aʊt/
phrasal verbIntermediate work very hardphrasal verb
informal

to work as hard and as fast as possible

The team worked flat out all week to meet the client's demands.

The team worked extremely hard throughout the week to satisfy the client.

He's been working flat out to get the report ready for tomorrow's meeting.

He's been working very hard to prepare the report in time.

💡

Often used to emphasize intense effort over a short period.

Related Phrases

work like a trojanphrase
work extremely hard and diligently
burn the candle at both endsidiom
work excessively hard without rest

💡Pro Tip

When to use 'work flat out'

Use this phrase when describing a situation where someone is working as hard and as fast as possible, often under pressure or with a tight deadline. It implies both intensity and urgency.

Gold Rule

Avoid literal interpretation

Do not confuse 'flat out' with its literal meaning (e.g., 'lying flat'). In this phrase, 'flat out' means 'with maximum effort' or 'at full capacity.'

📖Word Origin

The phrase combines 'work' (from Old English 'weorc') with 'flat out' (originating in the early 20th century as a term in aviation, meaning 'with all engines at maximum power'). The idiomatic use of 'flat out' to mean 'with maximum effort' transferred to 'work flat out' by the mid-20th century.

📝Usage Notes

This phrase is informal and typically used in spoken English or casual writing. It emphasizes not just hard work but also speed and intensity.

Word Breakdown

work
to perform labor or exert effort
verb
+
flat out
with maximum effort or speed
adverbial phrase
English Dictionary