Muckworm

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.

Source: wiktionary

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

Source: wiktionary

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

Source: wiktionary