subs. (thieves’).—A watch. A RED CLOCK = a gold watch; a WHITE CLOCK = a silver watch. Generally modified into ‘red’un’ and ‘white’un,’ but for synonyms, see TICKER.

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  1886.  Tit-Bits, 5 June, p. 121. Thus Fillied for a CLOCK and Slang, reveals the fact that the writer stole a watch and chain, was apprehended, and has been fully committed for trial.

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  TO KNOW WHAT’S O’CLOCK, phr. (common).—To be on the alert; in full possession of one’s senses; a DOWNEY COVE: generally knowing (q.v. for synonyms). A variant is to KNOW THE TIME O’DAY.

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  1835.  DICKENS, Sketches by Boz, p. 451. Our governor ’s wide awake, he is. I ’ll never say nothin’ agin him, nor no man; but he knows WHAT ’S O’CLOCK, he does, uncommon.

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  1849–50.  THACKERAY, Pendennis, I., p. 138. I’m not clever, p’raps, but I am rather downy, and partial friends say that I know WHAT’S O’CLOCK tolerably well.

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  CLOCK STOPPED.See TICK.

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