roast-meat clothes en · NOUN
Etymology
A reference to the Sunday roast.
Meanings
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(dated, plural, plural-only, slang) Sunday best.
But the morning was ushered in with a mighty storm, only because Simon put on his roast-meat clothes.
1889, “Simple Simon's misfortunes and his wife Margery's cruelty”, in Robert Hays Cunningham, editor, Amusing Prose Chap Books: