*lot of nerve
1. Fig. great rudeness; a lot of audacity or brashness. (*Typically: have ~; take ~.) He walked out on her, and that took a lot of nerve! You have a lot of nerve! You took my parking place!
2. Fig. courage. (*Typically: have ~; take ~.) He climbed the mountain with a bruised foot. That took a lot of nerve. He has a lot of nerve to go into business for himself.