hog

The definition of a hog is an adult pig.

(noun)

An example of a hog is a pig that is being sold for pork.

Hog is defined as a selfish or very dirty person, or is slang for a large motorcycle.

(noun)

An example of a hog is someone eating the last of the food, their third helping, before others have had a chance to have any of the food.
An example of a hog is a Harley-Davidson.

See hog in Webster's New World College Dictionary

noun pl. hogs, hog

any swine, esp. a domesticated adult (Sus scrofa) ready for market, or, in England, a castrated boar
Brit. a young sheep not yet shorn
Informal a selfish, greedy, gluttonous, coarse, or filthy person
Slang a large, heavy motorcycle

Origin: ME < OE hogg < ? or akin to ON höggva, to cut (akin to OE heawan, hew), in basic sense “castrated”

transitive verb hogged, hogging

1. to arch (the back) like a hog's
2. to cause (a ship, keel, etc.) to be higher in the center than at the ends
to trim (a horse's mane) in order to make it bristly
☆ Slang to grab greedily; take all of or an unfair share of

intransitive verb

to be higher in the center than at the ends, as the bottom of a ship

See hog in American Heritage Dictionary 4

noun

a. Any of various mammals of the family Suidae, which includes the domesticated pig as well as wild species, such as the boar and the wart hog.
b. A domesticated pig, especially one weighing over 54 kilograms (120 pounds).
a. A self-indulgent, gluttonous, or filthy person.
b. One that uses too much of something.
also hogg
a. Chiefly British A young sheep before it has been shorn.
b. The wool from this type of sheep.
Slang A big, heavy motorcycle.