subs. (thieves’).—A prison. For synonyms, see CAGE.

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  1866.  The London Miscellany, 3 March, p. 57, col. 3, ‘London Revelations.’ I don’t think that’s no little let-down for a cove as has been tip-topper in his time, and smelt the insides of all the COOPS in the three kingdoms.

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  1877.  GREENWOOD, Dick Temple. You say that you have been in the COOP as many times as I have.

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