Definitions

from The Century Dictionary.

  • noun The sleeve of a shirt.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Describing an informal, relaxed appearance or approach, particularly in business.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Derived from the practice of taking one's jacket off, and relaxing in shirt sleeves.

Examples

Comments

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