noun
plural slugs
[count] a small, soft creature that is like a snail without a shell
US informal :a lazy person
noun
plural slugs
[count] US :a small piece of metal that is fired from a gun :bullet
US informal :a disc shaped like a coin that is used illegally instead of a coin in a machine
informal :a small amount of liquor taken in one swallow - usually + of
noun
plural slugs
[count] US :a hard punch with the fist
verb
slugs; slugged; slugging
[no obj] informal :to hit (someone or something) hard with your fist, a bat, etc.
slug it out
informal :to fight or compete over something until one side wins
US