bring down the house

子供達のコンサートが開かれお喋りが得意なアンは朗読をしました。
"Well, your recitations just brought down the house, Anne. That sad one was simply splendid."
"brought down the house" は明らかに慣用句の様です。
Dictionary.com: to call forth vigorous applause from an audience; be highly successful: The children's performances brought down the house.
Merriam-Webster's Online Dictionary: (or bring the house down): to win the enthusiastic approval of the audience
現在ならスタンディングオベーションになるところだったのでしょうか。