slug

Any of many terrestrial pulmonate gastropod mollusks, having no (or only a rudimentary) shell.

A slow, lazy person; a sluggard.

A bullet or other projectile fired from a firearm; in modern usage, generally refers to a shotgun slug.

A solid block or piece of roughly shaped metal.

A counterfeit coin, especially one used to steal from vending machines.

A shot of a drink, usually alcoholic.

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.

(rarely used) 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.

A discrete mass of a material that moves as a unit, usually through another material.

A motile pseudoplasmodium formed by amoebae working together.

An accessory to a diesel-electric locomotive, used to increase adhesive weight and allow full power to be applied at a lower speed. It has trucks with traction motors but lacks a prime mover.

(television editing) A black screen.

A piece of type metal imprinted by a linotype machine; also a black mark placed in the margin to indicate an error; also said in application to typewriters; type slug.

A stranger picked up as a passenger to enable legal use of high occupancy vehicle lanes.

(District of Columbia) A hitchhiking commuter.

The last part of a clean URL, the displayed resource name, similar to a filename.

A hindrance, an obstruction.

A ship that sails slowly.

To drink quickly; to gulp; to down.

To take part in casual carpooling; to form ad hoc, informal carpools for commuting, essentially a variation of ride-share commuting and hitchhiking.

(of a bullet) To become reduced in diameter, or changed in shape, by passing from a larger to a smaller part of the bore of the barrel.

To move slowly or sluggishly; to lie idle.

To load with a slug or slugs.

“to slug a gun”

To make sluggish.

A hard blow, usually with the fist.

To hit very hard, usually with the fist.

“He insulted my mother, so I slugged him.”