slug

1 of 4

noun (1)

1
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
5
a
: 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)
6
a
: 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

Illustration of slug

Illustration of slug
  • slug 3

slug

2 of 4

verb (1)

slugged; slugging

transitive verb

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

slug

3 of 4

noun (2)

: a heavy blow especially with the fist

slug

4 of 4

verb (2)

slugged; slugging

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

Examples of slug in a Sentence

Noun (1) he's always a slug in the morning, which is why he prefers to sleep late knocked back another slug of whiskey Noun (2) one well aimed slug on the head knocked him out Verb (2) she got so angry that she slugged the back of the chair and knocked it over
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
The campground setting has a primeval feel, situated in dense old growth forest along the scenic Smith River, where banana slugs frolic (okay, maybe move slowly and strangely). Jenna Blough, Outside Online, 8 Apr. 2025 Witnessing Shohei Ohtani slug a walk-off home run on the night he’s honored with his own bobblehead: priceless! Los Angeles Times, 5 Apr. 2025
Verb
The Cubs quickly got two batters on and up came Kelly, who slugged his second homer of the day — his sixth of the season — and pulled the Cubs to within one. Sahadev Sharma, New York Times, 19 Apr. 2025 The Cubs’ 16-0 blowout was so significant in the late innings that Workman, 25, got another at-bat off Rojas in the ninth, slugging a two-run double for his first RBIs. Lamond Pope, Chicago Tribune, 17 Apr. 2025 See All Example Sentences for slug

Word History

Etymology

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

First Known Use

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

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

Browse Nearby Words

Cite this Entry

“Slug.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/slug. Accessed 22 Apr. 2025.

Kids Definition

slug

1 of 3 noun
1
2
a
: a small piece of shaped metal (as a bullet)
b
: a metal disk used in place of a coin in a coin-operated machine
3
: any of numerous long wormlike land mollusks that are related to the snails but have only an underdeveloped shell or none at all
4
: a single drink of liquor : shot

slug

2 of 3 noun
: a heavy blow especially with the fist

slug

3 of 3 verb
slugged; slugging
: to strike heavily with or as if with the fist or a bat
Etymology

Noun

Middle English slugge "a lazy person"; of Scandinavian origin

Noun

perhaps from earlier slug (verb) "to load (a weapon) with slugs"

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