Slump

The gross amount; the mass; the lump.

To lump; to throw into a mess.

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.

A boggy place.

The noise made by anything falling into a hole, or into a soft, miry place.

fall or sink heavily; "He slumped onto the couch"; "My spirits sank"

a long-term economic state characterized by unemployment and low prices and low levels of trade and investment