UK, 1938—old-fashioned informal British-English adjective meaning ‘in good order’, ‘fine’—origin obscure: perhaps from Hindi ‘ṭhīk hai’ (‘all right’) or from ‘the ticket’ (‘the correct thing’); or it may simply be a purely fanciful formation
derisive appellation given to Australian Rules (football), because the ball is often kicked high into the air, requiring players to leap and catch it—Australia, 1945—slang of the Australian armed forces during World War II
UK, 1710—in ease and luxury—refers to the use of clover as fodder, as explained by Samuel Johnson in A Dictionary of the English Language (1755): “To live in Clover, is to live luxuriously; clover being extremely delicious and fattening to cattle.”
Australia, 1938—beset with extraordinary difficulties—refers to Speed Gordon, the Australian name of Flash Gordon, the hero of the eponymous space-opera comic strip first published in 1934
Australia, 1941—used of any adverse situation—based on the rhyme between ‘crook’ (meaning ‘bad’, ‘unpleasant’, ‘unsatisfactory’) and ‘Tallarook’, the name of a town in Victoria—sometimes followed by ‘there’s no work in Bourke’
UK and USA, 1908: applied to a pair of trousers much too large for the wearer—later also applied to small cars and to socks much too large for the wearer
used to rebuke an unrealistic conditional—USA, 1808: ‘if my aunt had been my uncle, what would have been her gender?’—France, 1843: ‘si ma tante était un homme, ça serait mon oncle’ (‘if my aunt were a man, that would be my uncle’)
UK—originated in British-Army slang, first to designate an unintelligent person (1943), then any ordinary soldier of the lowest ranks (1945)—finally also, in civilian usage: any ordinary person (1947)