n. Any of several mammals of the family Suidae, having short legs, cloven hooves, bristly hair, and a cartilaginous snout used for digging, especially the domesticated hog, Sus scrofa domesticus, when young or of comparatively small size.n. The edible parts of one of these mammals.n. Informal A person regarded as being piglike, greedy, or gross.n. A crude block of metal, chiefly iron or lead, poured from a smelting furnace.n. A mold in which such metal is cast.n. Pig iron.n. Offensive Slang Used as a disparaging term for a police officer.n. Slang A member of the social or political establishment, especially one holding sexist or racist views.verb-intransitive. To give birth to pigs; farrow.phrasal-verb. pig out Slang To eat ravenously; gorge oneself: "a parent who asks a child, 'Would you like to pig out on pizza?'” ( George F. Will). idiom. in a pig's eye Slang Under no condition; never.idiom. pig in a poke Something that is offered in a manner that conceals its true nature or value.idiom. pig it Slang To live in a piglike fashion.