To spit.
To become slag; to agglomerate when heated below the fusion point.
To reduce to slag.
To talk badly about; to malign or denigrate (someone).
To produce slag.
Scum that forms on the surface of molten metal.
Scoria associated with a volcano.
A prostitute, or a woman who acts like one; a slut.
Waste material from a mine.
Hard aggregate remaining as a residue from blast furnaces, sometimes used as a surfacing material.
Impurities formed and separated out when a metal is smelted from ore; vitrified cinders.
A contemptible person, a scumbag.