1) The global economy took a nosedive, and this became an interesting market segment to Oracle and SAP. (Google)
2) Although she seemed to recover physically, her career took a nosedive, and she made her last film in 1953.(Google)
3) My social life took a nosedive. Often I wouldn't make any evening plans, so I could be free to go home after work and get into bed at whatever hour I liked. (Google)