of a person or thing: irretrievably defunct or out of date—UK, 1905—perhaps originally in allusion to ‘Diplodocus Carnegii’, named after Andrew Carnegie, who, that year, presented the skeleton of that diplodocus to the Natural History Museum of London
UK, early 19th century—the noun ‘corkscrew’ is used as a modifier, with the sense spirally twisted, in the expressions ‘corkscrew curl’ and ‘corkscrew ringlet’
looking or feeling ill or nauseated—1843, in a letter by Charles Dickens—when applied to a person, the plural noun ‘gills’ designates the flesh under the jaws and ears; also the cheeks
Ireland & Britain, 1850—a person who goes round the streets in the early morning to awaken factory hands—from ‘to knock somebody up’, meaning ‘to awaken somebody by knocking at the door’
to hurry up (1849 in Charles Dickens’s David Copperfield); the image is of a skater gliding rapidly over an ice surface—also, in early use (USA, 1886): to get drunk; the rolling gait of a drunk person is likened to the swaying motion of an ice skater
irresponsible or unfounded optimism—1857, apparently coined by Charles Dickens—refers to Wilkins Micawber, a character in Dickens’s novel David Copperfield (1850)
also ‘to drop one’s h’s’—not to pronounce the letter h at the beginning of words in which it is pronounced in standard English—1855—1847 as ‘not to sound one’s h’s’
a prim or affected facial expression or manner of speaking; affected mannerisms, superficial accomplishments—originally, in Little Dorrit (1857), by Charles Dickens, a phrase spoken aloud in order to form the lips into an attractive shape