Slug is a common name for an apparently shell-less terrestrial gastropod mollusc. The word "slug" is also often used as part of the common name of any gastropod mollusc that has no shell, has a very reduced shell, or has only a small internal shell .

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  1. Any of many terrestrial pulmonate gastropod mollusks, having no (or only rudimentary) shell
  2. A slow, lazy person; a sluggard.
  3. A bullet (projectile).
  4. A counterfeit coin, especially one used to steal from vending machines.
  5. A shot of a drink, usually alcoholic.
  6. A title, name or header, a catchline, a short phrase or title to indicate the content of a newspaper or magazine story for editing use.
  7. the Imperial (English) unit of mass that accelerates by 1 foot per second squared (1 ft/s²) when a force of one pound-force (lbf) is exerted on it.
  8. A discrete mass of a material that moves as a unit, usually through another material.
  9. A motile pseudoplasmodium formed by amoebae working together.
  10. A black screen.
  11. A piece of type metal imprinted by a Linotype machine; also a black mark placed in the margin to indicate an error.
  12. A stranger picked up as a passenger to enable legal use of high occupancy vehicle lanes.
  13. The last part of a , the displayed resource name, similar to a filename.
  14. A hindrance; an obstruction.
  15. A ship that sails slowly.


  1. To drink quickly; to gulp.
  2. To down a shot.
  3. To hit very hard, usually with the fist.
    He insulted my mother, so I slugged him.
    The fighter slugged his opponent into unconsciousness.
  4. To take part in casual carpooling; to form ad hoc, informal carpools for commuting, essentially a variation of ride-share commuting and hitchhiking.
  5. To become reduced in diameter, or changed in shape, by passing from a larger to a smaller part of the bore of the barrel.
  6. To move slowly or sluggishly; to lie idle.
  7. To load with a slug or slugs.
    to slug a gun
  8. To make sluggish.

The above text is a snippet from Wiktionary: slug
and as such is available under the Creative Commons Attribution/Share-Alike License.

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