muckworm
muck·worm
(mŭk′wûrm′)n.
Any wormlike insect larva, as of certain beetles, that lives and grows in manure.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
muckworm
(ˈmʌkˌwɜːm)n
1. (Zoology) any larva or worm that lives in mud
2. informal a miser
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014