dodgem

/ˈdɑdʒəm/
noun
  1. A small electric car driven in an enclosed area at an amusement park or fair, where people try to bump into each other.
    • The dodgem ride was the most popular attraction at the carnival.
    • We spent an hour at the fair driving dodgems and laughing.
    • The kids loved riding the dodgems and crashing into each other.