Definition of "hooroo"

Placing it triumphantly on the mahogany desk before him, he exclaims — “Hooroo ! Ho-ooo-roo-ooo ! in a husky voice, and sinks exhausted on a satin divan. “What′s the row, Hiram?” all cry, gathering eagerly about him. “Hooroo! I′m a rich man! I′ve got my patent!”

1886, The Yale Courant, volume 22, number 11, page 149

Every brown cap was swung in the air. “Hooray! Hooray! Hooroo!” rang the cheers.

1901—02, Herminie Templeton Kavanagh, Darby O'Gill and the Good People, McClure's Magazine, reprinted 1903, Reilly & Britton, page 80

When the visiting school wins (and sometimes it does, you know), then in pure politeness he says: “Hooroo! hooroo!” but he only goes half-way round.

1905, Report of the National Congress of Mothers: Held in the city of Washington, D. C., March 10-17, 1905, page 214

‘Hooroo! Hooroo! Hooroo!’ she shouted, tossing handfuls of instant confetti over their happy heads.

1981, Chris Wallace-Crabbe, Splinters, Rigby, page 182

The audience is made to chorus “Hooray, hooray, we the common people say hooray“ and “Hooroo, hooroo, Plaid Cymru, hooroo” in celebration of the royal wedding, and is regaled with parish-panto Pooterisms galore.

1998, Theatre Record, Volume 18, Issues 18-26, page 1510

“I′d better be going. Hooroo.”“Hooroo.”

1980, The Bulletin, volume 100, page 329

‘Hooroo.’ It had always been her inevitable parting word. / ‘Hooroo, Mrs Wheatley. Don′t forget next week.’

2009, Peter Yeldham, A Distant Shore, Penguin Group, unnumbered page

‘Hooroo, come again!’‘Hooroo, we will.’

2011, Shirley May, Conversations with Teddy: A Child′s Journey of Survival with Her Teddy Bear, the Keeper of Secrets, Xlibris, page 47