sb. and a. A. sb. One who or that which destroys joy or pleasure; one who throws a gloom over social enjoyment.

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1776.  Burney, Hist. Mus. (1789), I. 455. The Gods were not then, says M. Rousseau, regarded as kill-joys and shut out of convivial meetings.

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1863.  Geo. Eliot, Romola, xxv. Licentious young men, who detested him as the kill-joy of Florence.

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1896.  J. P. Mahaffy, in Chautauquan, Oct., 49/2. Reserve, if apparent, is the real kill-joy of conversation.

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  B.  adj. That kills or puts an end to joy.

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1822.  Scott, Pirate, i. His kill-joy visage will never again stop the bottle in its round.

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