1. present participle of hooray; cheering or shouting 'hooray' in celebration or approval
Usage: informal; typically used in progressive or gerund forms

Examples

• The crowd was hoorahing as the team scored the winning goal.
• The fans were hoorahing and waving flags throughout the parade.
• Everyone started hoorahing when the announcement was made.
• The audience was hoorahing loudly after the performance ended.
• Children were hoorahing with excitement at the carnival.