Dictionary
shirt-sleeve
Pronunciation: (shûrt'slēv"), [key]—
adj.
1. not wearing a jacket; informally dressed:
a shirt-sleeve mob.
2. warm enough to live or work in without wearing a jacket or coat:
shirt-sleeve weather in November.
3. simple, plain, and informal; direct and straightforward in approach, manner, etc.:
shirt-sleeve diplomacy. Also,shirt'sleeve",shirt'-sleeved",shirt'-sleeves".Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.