Definitions For Slug

noun

• (boxing) a blow with the fist
• Any of various terrestrial gastropods having an elongated slimy body and no external shell
• A projectile that is fired from a gun
• A strip of type metal used for spacing
• An amount of an alcoholic drink (usually liquor) that is poured or gulped
• An idle slothful person
• A counterfeit coin
• A unit of mass equal to the mass that accelerates at 1 foot/sec/sec when acted upon by a force of 1 pound; approximately 14.5939 kilograms

verb

• Strike heavily, especially with the fist or a bat
• Be idle; exist in a changeless situation