In one's shirt sleeves
Meaning
To be wearing only a shirt, having removed one's jacket or coat, often indicating informality or a readiness for work.
Origin
The act of being 'in one's shirt sleeves' became a significant social indicator in the 19th century, particularly among men. During this era, a gentleman's coat was an indispensable part of his public persona, symbolizing status, propriety, and professionalism. To shed one's coat, leaving only the shirt and waistcoat, was a deliberate act—a visual signal that formality had been set aside. It suggested a man was either relaxing in private, getting down to serious, often physical, work, or perhaps even preparing for a confrontation. This simple sartorial shift visually communicated a transition from the public, formal sphere to one of informality, labor, or intimacy, thus embedding the phrase in the lexicon as a shorthand for a relaxed, ready-for-action state.
Examples
- The CEO, usually impeccably dressed, was in his shirt sleeves, personally helping the team move boxes during the office relocation.
- After a long day, she liked to kick off her shoes and relax in her shirt sleeves, enjoying the evening breeze on the porch.