have a field day
Meaning
To have a great time or take great advantage of an opportunity, often enjoying it a lot (sometimes at someone else’s expense).
Origin
Originally referred to a “field day” as a day of outdoor exercise, sports, or military drills—an occasion for excitement and activity. The idiom broadened to mean greatly enjoying an event or opportunity.
Notes
Often positive (“enjoy yourself”) but can be negative when someone exploits a situation or makes a big deal out of another’s mistake (e.g., the media).
Examples
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The tabloids had a field day after the actor’s messy breakup went public.
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My little cousins had a field day at the science museum, pressing every button they could find.
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Opposing lawyers will have a field day if we leave these inconsistencies in the report.
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Social media had a field day with the CEO’s awkward on-stage mistake.
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If you give him access to the data, he’ll have a field day finding patterns we missed.
Grammar & Usage Notes
Fixed phrase: usually “have a field day” (also “had/will have a field day”). Often followed by “with” + noun (“The press had a field day with it”) or used standalone.
Synonyms
- have a great time
- have a blast
- revel in
- make the most of it
- have a heyday
Antonyms
- be indifferent
- miss an opportunity
- take no pleasure in