Slump (?), n. [Cf. D. slomp a mass, heap, Dan. slump a quantity, and E. slump, v.t.]
The gross amount; the mass; the lump. [Scot.]
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Slump, v. t. [Cf. Lump; also Sw. slumpa to bargain for the lump.]
To lump; to throw into a mess.
These different groups . . . are exclusively slumped together under that sense.
Sir W. Hamilton.
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Slump, v. i. [imp. & p. p. Slumped (?); p. pr. & vb. n. Slumping.] [Scot. slump a dull noise produced by something falling into a hole, a marsh, a swamp.]
To fall or sink suddenly through or in, when walking on a surface, as on thawing snow or ice, partly frozen ground, a bog, etc., not strong enough to bear the person.
The latter walk on a bottomless quag, into which unawares they may slump.
Barrow.
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Slump, n.
1.
A boggy place. [Prov. Eng. & Scot.]
2.
The noise made by anything falling into a hole, or into a soft, miry place. [Scot.]
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Slump, v. i.
1.
To slide or slip on a declivity, so that the motion is perceptible; -- said of masses of earth or rock.
2.
To undergo a slump, or sudden decline or falling off; as, the stock slumped ten points. [Colloq.]
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Slump, n.
A falling or declining, esp. suddenly and markedly; a falling off; as, a slump in trade, in prices, etc. [Colloq.]
© Webster 1913