1. bring down the house : make an audience clap or laugh enthusiastically - The comedian's jokes brought down the house. The audience couldn't stop laughing. 2. sponge off : to take money or hospitality and never repay the favors - She always likes to sponge off rich guys. 3. throw in the towel : to give up or quit - When the candidate saw she couldn't win the election, she throw in the towel a..