Bring the house down
Definition 1 of 2
Pro Tip 1/3Positive Reaction
Used when a performance or speech receives strong, positive feedback from the audience. 
The singer's last note brought the house down.
Pro Tip 2/3Figurative Language
It's a metaphor that exaggerates the audience's response to express how well-received a show or act was. 
At the end of his routine, the magician brought the house down.
Pro Tip 3/3Not Literal
Doesn't mean a physical house falling; it's about the impact of someone's actions or performance. 
Her powerful speech brought the house down.