Slump /(?)/

1. The gross amount; the mass; the lump. [Scot.]

1. To lump; to throw into a mess.

   These different groups . . . are exclusively slumped together under that sense.

imp. & p. p. Slumped; p. pr. & vb. n. Slumping

1. 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.

2. To slide or slip on a declivity, so that the motion is perceptible; -- said of masses of earth or rock.
3. To undergo a slump, or sudden decline or falling off; as, the stock slumped ten points. [Colloq.]

1. A boggy place. [Prov. Eng. & Scot.]
2. The noise made by anything falling into a hole, or into a soft, miry place. [Scot.]
3. A falling or declining, esp. suddenly and markedly; a falling off; as, a slump in trade, in stock market prices, in a batter's average, etc. [Colloq.]