nosebleed
/ˈnəʊzbliːd/noun
1- an instance of bleeding from the nose鼻出血。
1.1
- as modifier N. Amer. informal denoting cheap seating located in an extremely high position in a sports stadium, large theatre, or concert hall〈北美, 非正式〉（体育场、大剧院、音乐厅的）后排最高处的廉价座位。