subs. (common).—1.  The mouth; hence (2) a chatterbox: see RATTLE.

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  1879.  W. H. THOMSON, Whitecross and the Bench, 180. You’re as great a RATTTETRAP as ever.

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  3.  (colloquial).—Anything old and tumble-down: spec. a broken-down rattling conveyance; also (4) personal belongings: in jocular disparagement, and (GROSE) ‘any curious, portable piece of machinery or philosophical apparatus.’ As adj. = worn-out; crazy.

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  1830.  BULWER-LYTTON, Paul Clifford, xxxiv. 299. Where poor Judy kept her deeds and RATTLETRAPS.

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  1857.  A. TROLLOPE, Barchester Towers, xxxv. “He’d destroy himself and me too, if I attempted to ride him at such a RATTLETRAP as that.” A RATTLETRAP! The quintain that she had put up with so much anxious care…. It cut her to the heart to hear it so denominated by her own brother.

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  d. 1861.  CATHERINE GORE, Castles in the Air, xxxiv. Hang me if I’d ha’ been at the trouble of conveying her and her RATTLE-TRAPS last year across the channel.

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