Green’s Dictionary of Slang

(US) wonderful, great, impressive.

1762		Garrick Farmer’s Return 2: wife: But London, dear John! farmer: Is a fine hugeous city.
1860		T. Haliburton Season Ticket 220: A hugeacious ship.
1868		H.L. Williams Black-Eyed Beauty 62: You see the Olympic has been doing huge with the English blonde, ‘from the Haymarket London.’.
1898		W. Besant Orange Girl I 77: She liked them ‘hugeously’.
1917		Queenslander (Brisbane) 28 July 45/3: I was reading the war news, and saw an article about our hugeous tanks.
1958		M.A. Crane ‘Miscellany’ in AS XXXIII:3 225: Among nonhipsters, the most widespread of all hip expressions are those expressing warm approval: [...] large, huge, and magnanimous.
1993		Eble Campus Sl. Apr.
1999		K. Sampson Powder 462: He was off to be huge in Crosby. Fabulous!