Slug

Part of speech: noun (n.)

1. A drone; a slow, lazy fellow; a sluggard. Shak.

2. A hindrance; an obstruction. [Obs.] Bacon.

3. Any one of numerous species of terrestrial pulmonate mollusks belonging to Limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting. They are closely allied to the land snails.

4. Any smooth, soft larva of a sawfly or moth which creeps like a mollusk; as, the pear slug; rose slug.

5. A ship that sails slowly. [Obs.] Halliwell. His rendezvous for his fleet, and for all slugs to come to, should be between Calais and Dover. Pepys.

6. An irregularly shaped piece of metal, used as a missile for a gun.

7. A thick strip of metal less than type high, and as long as the width of a column or a page, -- used in spacing out pages and to separate display lines, etc. Sea slug. (Zoöl.) (a) Any nudibranch mollusk. (b) A holothurian. -- Slug caterpillar. Same as Slugworm.

Part of speech: verb (v.)

To move slowly; to lie idle. [Obs.] To slug in sloth and sensual delight. Spenser.

Part of speech: verb (v.)

To make sluggish. [Obs.] Milton.

Part of speech: verb (v.)

1. To load with a slug or slugs; as, to slug a gun.

2. To strike heavily. [Cant or Slang]

Part of speech: verb (v.)

To become reduced in diameter, or changed in shape, by passing from a larger to a smaller part of the bore of the barrel; -- said of a bullet when fired from a gun, pistol, or other firearm.