A word indicating the progress of a man in the mire; applied to the failure of a college student; and, latterly, to a heavy fall in the price of stocks. [See Notes and Queries, 4 S. xii. 413.]

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1804.  

        And shrubs and trees, if e’er they grew,
Have lost their foothold, and slump’d through.
Mass. Spy, Jan. 25: from the Connecticut Courant. (The allusion is to the Louisiana purchase.)    

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1847.  In fact, he ’d rather dead than dig; he ’d rather slump than squirt. (Harvard)—Hall, ‘College Words,’ p. 433 (1856).

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1850.  Move carefully!… It is a slip, or a slump, all the way through.—S. Judd, ‘Richard Edney,’ p. 12.

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