slag

Meaning

Noun

1. Waste material from a mine.
2. Scum that forms on the surface of molten metal.
3. Impurities formed and separated out when a metal is smelted from ore; vitrified cinders.
4. Hard aggregate remaining as a residue from blast furnaces, sometimes used as a surfacing material.
5. Scoria associated with a volcano.
6. (slang) A prostitute or promiscuous woman; a slut.
7. A coward.
8. A contemptible person, a scumbag.

Verb

1. To produce slag.
2. To become slag; to agglomerate when heated below the fusion point.
3. To reduce to slag.
4. (slang) To talk badly about; to malign or denigrate (someone).
5. (slang) To make fun of; to take the piss (tease, ridicule or mock).
6. (slang) To spit.

Concepts

slag

scoria

cinder

dross

clinker

scorify

slut

cinders

dregs

refuse

residue

sinter

flux

slag formation

slagging

molten slug

recrement

trash

scobs

denigrate

abuse

lava

rust

rustiness

sprue

slag tap

slag tapping

tapping

tapping slag

cinder inclusion

slag entrapment

slag inclusion

slag occlusion

slag patch

slag spot

froth

lees

press residues

scrap

tank waste

slag muck

slagheap

engine ash

furnace slag

fused slag

molten-slag

moltenslag

scoriae

sullage

gangue

building of slag

fluxing

formation of slag

slag-forming

slag-making

slagoff

scum

dust

tramp

whore

Pronounced as (IPA)

/slæɡ/

Etymology

Borrowed from Middle Low German slagge, slaggen (“slag, dross”), from Old Saxon *slaggo, from Proto-West Germanic *slaggō, from Proto-Germanic *slaggô, from Proto-Germanic *slagōną (“to strike”) + *-gô (diminutive suffix). Compare Middle Low German slāgen (“to strike”), since originally the splinters struck off from the metal by hammering, from *slagōn, from Proto-West Germanic *slagōn. Compare also Old Saxon slegi, from Proto-West Germanic *slagi.
See also Dutch slak, German Schlacke, Swedish slagg; also compare English slay.