slug
slug1 / sləg/ • n. 1. a tough-skinned terrestrial mollusk (order Stylommatophora, class Gastropoda) that typically lacks a shell and secretes a film of mucus for protection. It can be a serious plant pest. See also sea slug. 2. a slow, lazy person; a sluggard. 3. an amount of an alcoholic drink, typically liquor, that is gulped or poured: he took a slug of whiskey. 4. an elongated, typically rounded piece or metal. ∎ a counterfeit coin; a token. ∎ a bullet, esp. one of lead. ∎ a missile for an air gun. ∎ a line of type in Linotype printing. ∎ Printing a metal bar used in spacing.• v. (slugged , slugging ) [tr.] drink (something, typically alcohol) in a large draft; swig.slug2 inf. • v. (slugged, slug·ging) [tr.] strike (someone) with a hard blow: he was the one who'd get slugged. ∎ (slug it out) settle a dispute or contest by fighting or competing fiercely: they went outside to slug it out.• n. a hard blow.