slug - definition and synonyms

noun [countable] 

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  1. 1
    a small creature with a soft body and no legs that moves very slowly. Slugs are similar to snails but they have no shell.
     Synonyms and related words
  2. 2
    informal an amount of a strong alcoholic drink that you drink quickly

    She took another slug of whisky.

  3. 3
    informal a bullet