Definitions

1. interjection

an expression of excitement or triumph; a cheer of triumph or joy

“The crowd erupted in a joyful yippee as the home team scored the winning goal.”

2. noun

an expression of triumph or joy, especially one that is loud and uninhibited

“The yippee from the crowd was so loud that it could be heard from outside the stadium.”

3. verb

to cheer or express triumph or joy with a loud, uninhibited cry

“The fans yipped as the team won the championship.”