- the flexible striking part of a whip
- a sudden, severe bending and jolting of the neck, as in an auto accident, often causing injury to the neck muscles, vertebrae, etc.
- The lash of a whip.
- An injury to the cervical spine caused by an abrupt jerking motion of the head, either backward or forward.
(third-person singular simple present whiplashes, present participle whiplashing, simple past and past participle whiplashed)