Exuberant shout (7)

(Other definitions for whoopee that I've seen before include "exclamation of joy" , "Hooray!" , "Love" , "Sort of cushion" , "partying" .)
(Other definitions for whoop that I've seen before include "Loud, enthusiastic cry" , "Joyful shout" , "Hooting cry" , "sound when transported" , "Utter with excited cries" .)