toboggan

/təˈbɑɡən/
noun
  1. A long, flat-bottomed sled without runners, used for sliding down snow-covered hills.
    • He waxed the bottom of the toboggan to make it go faster.
    • The children raced down the hill on their wooden toboggan.
    • We packed a toboggan and hot cocoa for our winter outing.
Synonyms
verb
  1. To ride or travel on a toboggan.
    • She learned to toboggan when she was just five years old.
    • We spent the afternoon tobogganing down the steep slope.
    • Every winter, they toboggan in the park near their house.
  2. To decline or fall rapidly, like a toboggan sliding downhill.
    • The team's performance tobogganed in the second half of the season.
    • His mood tobogganed from cheerful to gloomy in minutes.
    • Stock prices tobogganed after the bad economic news.