Answer: whoopee

AnswerCrossword Clue
WHOOPEE

Exuberant cry

WHOOPEE

"Yee-haw!"

WHOOPEE

Kind of cushion

WHOOPEE
"Yahoo!"
WHOOPEE
Hilarious yell.
WHOOPEEUproarious festivity: Slang.
WHOOPEEShout of exuberance
WHOOPEE"Yay!"
WHOOPEEType of cushion
WHOOPEECushion of pranks