A clean one.
1862. See Appendix XIV.
1869. [In order to attend the Governors reception], I borrowed a boiled shirt.A. K. McClure, Rocky Mountains, p. 412. (N.E.D.)
1888. Yer got to pit on yo biled shirt in de mawnin arly, en git radey fur chuch.Daily Inter-ocean, Feb. 13 (Farmer).
1890. The frontiersmen scoffed and jeered at this offending hat, discussed the biled shirts, and viewed the whole party with lofty scorn.Mrs. Custer, Following the Guidon, p. 172 (N.Y.).