hooroo /həˈɹuː/exclamation 2verb 1forms 3 exclamation2 •(Australia, informal) Goodbye.“I′d better be going. Hooroo.” “Hooroo.” — 1980 •Hooray.Every brown cap was swung in the air. “Hooray! Hooray! Hooroo!” rang the cheers. — 1901 verb1 •To give a cheer of "hooroo". formshoorooed · hoorooing · hooroos
