The Tooth Chipper

The Tooth Chipper is a ride in Colonel Tex's Traveling Carnival and Krustyland. It is named for its tendency to make sudden stops and cause the passengers to hit the safety rail with their mouths, thus running the risk of damaging, or chipping, their teeth.

History
When the Simpson family visited Colonel Tex's Traveling Carnival, Homer, Bart, and Lisa took a ride on the Tooth Chipper. Marge didn't like the ride because it looked unsafe.