UK—a general term of disapproval, meaning ‘unpleasant’, ‘dirty’, ‘nasty’, ‘ugly’, etc.—shortened form of ‘grotesque’—first recorded in (and popularised by) A Hard Day’s Night (1964), a musical comedy film starring the Beatles
UK, 1839—a Liverpudlian, especially as opposed to a Mancunian—from the 19th-century distinction between the Liverpudlians, who were involved in trading, and the Mancunians, who were involved in manufacturing
UK, 1975—old-fashioned; out of date—perhaps a humorous alteration of the adjective ‘antique’, perhaps punningly after the adjective ‘wacky’—or perhaps derived from ‘Ann Twack’, rhyming slang for ‘crap’
UK, 2005—used rhetorically to express indifference to, or a lack of concern about, something—originally (2004) a catchline used by Lauren, a teenage girl interpreted by the British comedian Catherine Tate in the British television comedy series The Catherine Tate Show
UK, 1980—denotes someone or something that is unwelcome, unpopular, etc.—first recorded in a remark by the Scottish comedian Billy Connolly, but perhaps originated in Royal-Navy slang
UK, 1877—humorous: a holiday or period of leisure spent drinking alcoholic liquor—blend of the nouns ‘alcohol’ and ‘holiday’—has, in the course of time, been coined on separate occasions by various persons, independently from one another
‘impressionist’ (1875) from French ‘impressionniste’ (1874)—a painter who was an exponent of ‘impressionism’ (1877), a movement in painting developed in France in the last third of the 19th century—French ‘impressionnisme’ may have been coined in 1858
UK, 1741—all day, incessantly—also, in early use, ‘morn, noon and night’—different from the juxtaposition of the nouns ‘morning’, ‘noon’ and ‘night’, which refers to an action taking place first in the morning, then at noon, and finally at night
USA, 1999—unfashionable or socially awkward in a way regarded as appealing or endearing—blend of ‘adorable’ and ‘dork’—the noun ‘dork’ denotes an odd, socially awkward, unstylish person
UK, 1920 (‘queue-jumper’)—literally: to push forward out of turn in a queue—figuratively: to obtain unfair priority over others—especially used since the 1930s in relation to compulsory queueing schemes implemented by public-transport authorities