Green’s Dictionary of Slang

delicious, flavoursome, luscious; also as adv. (see cite 1899).

1856		J. Strang Glasgow and Its Clubs 429: Raising the galoptious draught to his lips [...] he dedicated the bumper.
1861		C.S. Calverley ‘Charades I’ Works (1901) 37: Cooking for a genteel family, John, it’s a goluptious life!
1863		Western Gaz. 26 Dec. 7/1: O wasn’t it galopshus?
1866		Letters by an Odd Boy 34: I consider the raspberry jam [...] golopshus.
1873		Sl. Dict.
1876		Exeter & Plymouth Gaz. 22 Dec. 3/4: Mirriage is [...] oh! there’s but one word — Golumptious!
1880		Pearl 18 Dec. in Bold (1979) 95: O mustn’t a man be galoptious if he beats the new Fucking Machine?
1887		Judy 21 Sept 140: Four young ladies represented the galopshus sum of 20,000,000 dollars [F&H].
1889		C. Deveureux Venus in India I 80: Mrs Searle Banker and sole proprietress, which Bank is her goloptious cunt, between her goloptious thighs!
1890		J. Payn Notes from ‘News’ 29: To be a popular music-hall singer, with his brougham and his chirruper, must be a most ‘golluptious’ life.
1893		Cricket and Football Field 6 May n.p.: [T]he three hours of mirth and merriment, interspersed by speeches [...] galore, were simply ‘galotious’.
1895		Northern Echo 23 Dec. 1/2: When you see [our Christmas package] you’ll cry galumptious! It contains 12 Kinds of the most Lusciously Delicious Confections.
1899		Clipper (Hobart, Tas.) 27 May 7/1: [N]ymphs de pave always figure [...] among the best dressed and certainly not the least lady-like women of the grand stand. Sin must shine pretty goloptious to the sweated shop and factory girls.
1904		‘G.B. Lancaster’ Sons O’ Men 187: Twenty-five galopshus, full-bodied, double chaps.
1904		Sydney Sportsman (Surry Hills, NSW) 17 Feb. 3/5: That most golopshious fruit, the onion.
1910		‘O. Henry’ ‘The Thing’s the Play’ in Strictly Business (1915) 121: Say, girls, it’s galluptious.
1910		G. Herriman in L.A. Examiner 1 June [synd. cartoon] Medicocrities, otherwise known as pork and beaners, lending voice in a small way to the galotious spectacle.
1913		E.L. Warnock ‘Terms of Approbation And Eulogy’ in DN IV:i 18: galoptious. Delightful, luscious, a general superlative. [...] ‘Isn’t this a galoptious day’ [...] galloptious. [...] galopshus. [...] goloptious. [...] goluptious.
1922		Joyce Ulysses 161: That last pagan king of Ireland Cormac in the schoolpoem choked himself at Sletty southward of the Boyne. Wonder what he was eating. Something galoptious.
1925		Dover Exp. 6 Feb. 15/4: The play was scrumptious, splendid, good, in fact galumptious.
1937		Dover Exp. 12 Feb. 15/2: Very well played, Dover! How you gave, in scrap galumptious, the Shepper Islanders ‘The Bird’.