slug

noun (1)
\ ˈsləg How to pronounce slug (audio) \

Definition of slug

 (Entry 1 of 4)

1 : sluggard
2 : a lump, disk, or cylinder of material (such as plastic or metal): such as
a(1) : a musket ball
(2) : bullet
b : a piece of metal roughly shaped for subsequent processing
c : a $50 gold piece
d : a disk for insertion in a slot machine especially : one used illegally instead of a coin
3 : any of numerous chiefly terrestrial pulmonate gastropods (order Stylommatophora) that are found in most parts of the world where there is a reasonable supply of moisture and are closely related to the land snails but are long and wormlike and have only a rudimentary shell often buried in the mantle or entirely absent
4 : a smooth soft larva of a sawfly or moth that creeps like a mollusk
5a : a quantity of liquor drunk in one swallow
b : a detached mass of fluid (such as water vapor or oil) that causes impact (as in a circulating system)
6a : a strip of metal thicker than a printer's lead
b : a line of type cast as one piece
c : a usually temporary type line serving to instruct or identify
7 : the gravitational unit of mass in the foot-pound-second system to which a pound force can impart an acceleration of one foot per second per second and which is equal to the mass of an object weighing 32 pounds

slug

verb (1)
slugged; slugging

Definition of slug (Entry 2 of 4)

transitive verb

1 : to add a printer's slug to
2 : to drink in gulps often used with down

slug

noun (2)

Definition of slug (Entry 3 of 4)

: a heavy blow especially with the fist

slug

verb (2)
slugged; slugging

Definition of slug (Entry 4 of 4)

transitive verb

1 : to strike heavily with or as if with the fist or a bat
2 : fight sense 4b usually used in the phrase slug it out

Illustration of slug

Illustration of slug

Noun (1)

slug 3

In the meaning defined above

First Known Use of slug

Noun (1)

15th century, in the meaning defined at sense 1

Verb (1)

1912, in the meaning defined at sense 1

Noun (2)

1830, in the meaning defined above

Verb (2)

circa 1861, in the meaning defined at sense 1

History and Etymology for slug

Noun (1)

Middle English slugge, of Scandinavian origin; akin to Norwegian dialect slugga to walk sluggishly

Noun (2)

perhaps from slug to load with slugs

Learn More About slug

Time Traveler for slug

Time Traveler

The first known use of slug was in the 15th century

See more words from the same century

Dictionary Entries Near slug

slue rope

slug

slugabed

See More Nearby Entries 

Statistics for slug

Cite this Entry

“Slug.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/slug. Accessed 16 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for slug

slug

noun
\ ˈsləg How to pronounce slug (audio) \

Kids Definition of slug

 (Entry 1 of 4)

: a wormlike animal living mostly on land that is a mollusk related to the snails but that has an undeveloped shell or none at all

slug

noun

Kids Definition of slug (Entry 2 of 4)

1 : bullet
2 : a metal disk often used in place of a coin

slug

noun

Kids Definition of slug (Entry 3 of 4)

: a hard blow especially with the fist

slug

verb
slugged; slugging

Kids Definition of slug (Entry 4 of 4)

: to hit hard with the fist or with a bat

WORD OF THE DAY

Test Your Vocabulary

Eponyms: Words Named After People

True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!