Noun

(en noun)

A larva living in mud or manure.

Someone who gathers wealth through overwork of employees and sordid means; a miser.

*{{quote-book, 1748, , The Castle of Indolence, chapter=Canto I citation

, passage=Here you a muckworm of the town might see, / At his dull desk, amid his legers stall'd, / Eat up with carking care and penurie; / Most like to carcase parch'd on gallows-tree.}}

*{{quote-book, 1840, , The Writings of Douglas Jerrold, chapter=The Money-Lender, page=279 citation

, passage=We have painted one Money-Lender — not the mere sordid muckworm of a century ago, but the man-eater of the present day. }}

*{{quote-book, 1993, Marlene Suson, The Lily and the Hawk, page=158 citation

, passage=Perhaps it is far too expensive for a notorious muckworm like you! I, however, am more generous. }}