Examples from the Web for lugworm
Lugworm, lug′wurm, n. a sluggish worm found in the sand on the sea-shore, much used for bait by fishermen.
Commonly known as "lugworm," and used by fishermen for bait.The Sea-beach at Ebb-tide|Augusta Foote Arnold
British Dictionary definitions for lugworm
Word Origin for lugworm
Word Origin and History for lugworm
c.1600, from lug, probably a Celtic word (the first recorded use is in a Cornwall context) unrelated to lug (n.) or lug (v.) + worm. But OED suggests connection with lug (v.) on the notion of "heavy, clumsy."