nightcrawler

/N AY1 T K R AO1 L ER0/
noun
  1. 1

    An earthworm of the species Lumbricus terrestris, known for its large size and nocturnal surfacings.

  2. 2

    (chiefly Northern US, Western US) More generally, any arbitrarily large earthworm, especially those favored in angling

Source: https://en.wiktionary.org/wiki/nightcrawler