SLUMP v.
all 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.
STUB n.
oe nails, -- used in making gun barrels. -- Stub mortise (Carp.), a mortise passing only partly through the timber in which it is formed. -- Stub nail, an old horseshoe nail; a nail broken off; also, a short, thick nail. -- Stub short, or Stub shot (Lumber Manuf.), the part of the end of a sawn log or plank which is…