hip, hip, hooray!

Từ điển Oxford Advanced Learner 8th

hip, hip, hooˈray! idiom
(also less frequent hip, hip, hurˈrah/hurˈray!)used by a group of people to show their approval of sb. One person in the group says ‘ hip, hip ’ and the others then shout ‘ hooray ’.
•‘Three cheers for the bride and groom: Hip, hip…’ ‘Hooray!’
Main entry: ↑hip_idiom