or -clothes, subs. phr. (colloquial).—1.  Clothes kept for use on Sundays and holidays; best clothes.

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  1838.  WILLIAM WATTS (‘Lucian Redivivus’), Paradise Lost, 30.

        While, in his SUNDAY JACKET dressed,
And perched up higher than the rest.

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  1866.  GASKELL, Wives and Daughters, xlv. Mrs. Gibson was off, all in her SUNDAY BEST.

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  1897.  MARSHALL, Pomes, ‘Her SUNDAY CLOTHES,’ 105. Her SUNDAY BEST was her week-day worst, ’Twas simply a caution to snakes.

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  2.  (venery).—An erectio penis: as in the phrase, ‘the old man (= the penis) has got his Sunday clothes on’: see HORN.

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