tobogganer

enUK

to·bog·gan

T0244900 (tə-bŏg′ən)n. A long, narrow, runnerless sled constructed of thin boards curled upward at the front end.intr.v. to·bog·ganed, to·bog·gan·ing, to·bog·gans 1. To coast, ride, or travel on a toboggan.2. Slang To decline or fall rapidly: His good fortune has tobogganed.
[Canadian French tobagan, from Mi'kmaq topaghan.]
to·bog′gan·er, to·bog′gan·ist n.