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The Collaborative International Dictionary of English v.0.48 (gcide)

Dirt \Dirt\ (d[~e]rt), n. [OE. drit; kin to Icel. drit
excrement, dr[imac]ta to dung, OD. drijten to dung, AS.
gedr[imac]tan.]
1. Any foul of filthy substance, as excrement, mud, dust,
etc.; whatever, adhering to anything, renders it foul or
unclean; earth; as, a wagonload of dirt.
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Whose waters cast up mire and dirt. --Is. lvii.
20.
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2. Meanness; sordidness.
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Honors . . . thrown away upon dirt and infamy.
--Melmoth.
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3. In placer mining, earth, gravel, etc., before washing.
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{Dirt bed} (Geom.), a layer of clayey earth forming a stratum
in a geological formation. Dirt beds are common among the
coal measures.

{Dirt eating}.
(a) The use of certain kinds of clay for food, existing
among some tribes of Indians; geophagism. --Humboldt.
(b) (Med.) Same as {Chthonophagia}.

{Dirt pie}, clay or mud molded by children in imitation of
pastry. --Otway (1684).

{To eat dirt}, to submit in a meanly humble manner to
insults; to eat humble pie.
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Dirt \Dirt\, v. t.
To make foul of filthy; to dirty. --Swift.
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