MULLOCK
Etymology
Noun
mullock (usually uncountable, plural mullocks)
(now UK dialect) Rubbish, waste matter.
(Australia, New Zealand, mining) Waste rock from which the wanted gold, minerals, opal, etc, has been extracted; waste material generated while searching for minerals or while mining, such as when sinking a shaft.
Nonsense, rubbish.
(UK, Yorkshire, dialect) A mess; the result of a blunder.
Verb
mullock (third-person singular simple present mullocks, present participle mullocking, simple past and past participle mullocked)
(transitive, mining) To clear waste material out of a mine.
Source: Wiktionary
Mul"lock, n. Etym: [From Mull dirt: cf. Scot. mulloch, mulock, crumb.
*108.]
Definition: Rubbish; refuse; dirt. [Obs.]
All this mullok [was] in a sieve ythrowe. Chaucer.
Source: Webster’s Unabridged Dictionary 1913 Edition