toboggan |təˈbɡən|: noun
a long narrow sled used for the sport of coasting downhill over snow or ice.It typically is made of a lightweight board that is curved upward and backward at the front.
toboggan: verb [ no obj. ]
(usu. go tobogganing) slide downhill over snow on a toboggan: my kids love to go tobogganing in the park before Christmas dinner | we tobogganed down a steep hill nearby.