Green’s Dictionary of Slang

hooley n.

also hoolie, huly
[? Irish ceilidh, a gathering for the playing of music, telling of tales and general conversation (pron. ‘kayley’). Share in Slanguage (1997), however, opts for Anglo-Ind. hooly, ult. Hind. holi, the Hindu spring festival in honour of Krishna; note also hoolihan n.]

(orig. Irish) a rip-roaring party.

[US]Bartlett Dict. Americanisms (4th edn) 302: Huly, a noise, uproar. ‘To raise huly.’ New England.
[Ire]S. O’Casey Shadow of a Gunman Act I: There’s nothin’ I’m more fond of than a Hooley. I was at one last Sunday – I danced rings round me!
[Ire]‘Flann O’Brien’ At Swim-Two-Birds 63: Did you ever go into a room early in the morning [...] where there had been a hooley the night before, with cigars and whisky and food and crackers and women’s scent?
[Ire](con. 1940s) B. Behan Borstal Boy 99: Thomas Leaf [...] asks to be let into the hooley.
[Ire]P. Boyle All Looks Yellow to the Jaundiced Eye 112: The orange frock [...] It was really the ultimate in squalor. The sort of thing you would see at a village hooley.
[Ire]C. Brown Down All the Days 53: Two young men [...] who were coming home in the early hours of the morning from an all-night hooley.
[Ire]E. Mac Thomáis Janey Mack, Me Shirt is Black 44: The lovable Dining Hall for hops, hooleys and fancy dress parties.
[Ire](con. 1930s) K.C. Kearns Dublin Tenement Life 180: And it ended up with a hooley. And I always remember what a lovely hooley it was.
[UK]K. Sampson Awaydays 91: A taffeta gown doesn’t seem quite the thing for the Civil Service hoolie.
[UK]K. Sampson Outlaws (ms.) 32: They’re going into town for their big Christmas hoolie.