Green’s Dictionary of Slang

happily, triumphantly noisy.

1815		‘Picknickery’ in Vocal Mag. 99: Sure such a meeting, so very rorytorious, / As such a night, beats any sight I wish to see.
1821		‘An Amateur’ Real Life in London I 241: Journeymen mechanics, with pipes in their mouths, some of them rather rorytorious.
1852		‘Epistle from Joe Muggins’s Dog’ in Era (London) 21 Mar. 3/3: Well Guvnor we've ad a rory-tory sort o' who'd athortitweak at Warrik.
1913		E.L. Warnock ‘Terms of Approbation And Eulogy’ in DN IV:i 19: roritorious. Showy, dashing [...] ‘What a roritorious hat!’.