1. (noun)earthworm, angleworm, fishworm, fishing worm, wiggler, nightwalker, nightcrawler, crawler, dew worm, red worm terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers Synonyms: angleworm, crawler, ass-kisser, nightcrawler, creeper, squirmer, wriggler, red worm, fishing worm, sycophant, lackey, nightwalker, earthworm, fishworm, wiggler, toady, dew worm