coaster : Idioms & Phrases
coaster brake
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noun a brake on a bicycle that engages with reverse pressure on the pedals
WordNet
coaster wagon
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noun a child's four-wheeled toy cart sometimes used for coasting
wagon.
WordNet
roller coaster
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noun anything characterized by abrupt and extreme changes (especially up and down)
- the economy has been on a roller coaster all year
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noun elevated railway in an amusement park (usually with sharp curves and steep inclines)
chute-the-chute; big dipper.