• Webster's Revised Unabridged Dictionary
    • Muckworm (Zoöl) A larva or grub that lives in muck or manure; -- applied to the larvæ of the tumbledung and allied beetles.
    • Muckworm One who scrapes together money by mean labor and devices; a miser. "Misers are muckworms ."
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Century Dictionary and Cyclopedia
    • n muckworm A worm that lives in muck.
    • n muckworm A miser; one who scrapes together money by mean devices.
    • ***


In literature:

Or die like the muckworm that you are.
"Mistress Wilding" by Rafael Sabatini
You may hang the muckworm, and what shall that profit any one?
"The Lion's Skin" by Rafael Sabatini
If the Old Lord Chatham were now alive, he would speak with respect of the muckworm, as he called the 'Change Alley people.
"Letters of David Ricardo to Thomas Robert Malthus, 1810-1823" by David Ricardo