whoopee

1. INTERJ People sometimes shout whoopee when they are very happy or excited. 哈哈; 表示非常开心或激动的叹词[非正式]

I can have a week at home in my own bed before I have to leave for New York. Whoopee!

去纽约之前我还有一周可以睡在自己家床上。哈哈！