a hit and run accident

a hit and run accident: is the act of causing (or contributing to) a traffic crash (such as colliding with a person or a fixture), and failing to stop and identify oneself afterwards. It is considered a crime in most jurisdictions.
Examples:

  • The car struck the pedestrian and left. It was a hit and run accident.
  • He’s charged with two counts of vehicular assault and two counts of hit-and-run.