cover-slut

Noun

cover-slut (plural cover-sluts)

1. (obsolete) An apron or pinafore, worn to hide slovenliness (such as dirt, stains, or tears) in the clothing beneath.
   • Nor let your women there appear / With dirty ſmock-ſleeves, foul head-geare, / With Cover-ſlut from Neck to Toe, / As Maids to morning Lectures go.1678, John Phillips, “Book V”, in Maronides, or, Virgil Travesty, page 15
   • The Irish cloak forms very graceful drapery; the material falls well, and folds well. It is usually large enough to envelop the whole person; and the hood is frequently drawn forward to shield the face of the wearer from sun, rain, or wind. Yet we would fain see its general use dispensed with. A...1846, Samuel Carter Hall, Ann Kent Hall, “Kildare”, in Ireland: Its Scenery, Character &c., volume 2, footnote, page 272
2. (broadly, figuratively, obsolete) Any surface appearance hiding something underneath.
   • Fie, madam, you'll ruin the sex! Husband, say ye? A mere thing—a cover-slut of custom!1690, John Wilson, Belphegor, act 2, scene 3; republished in The Dramatic Works of John Wilson, Edinburgh: William Paterson, 1874, page 320