coaster

noun

1. Ellipsis of coaster trout (“the brook trout (Salvelinus fontinalis) in Lake Superior and Maine”).
2. A cow from the coastal part of Texas.
3. (slang) An itinerant person who shirks work but still seeks food and lodging; a loafer, a sundowner.
4. A person who uses a sled or toboggan to slide down a slope covered with ice or snow; a sledder, a tobogganist.
5. One who succeeds while making only a minimal effort.
6. A small, flat or tray-like object on which a bottle, cup, glass, mug, etc., is placed to protect a table surface from drink spills, heat, or water condensation.
7. (slang) A useless compact disc or DVD, such as one that was burned incorrectly or has become corrupted.
8. (informal) Ellipsis of rollercoaster.
9. A sled or toboggan.
10. A minibus; small bus (especially Toyota Coaster or in general resembling such regardless of brand name)
11. (dated, slang) A prostitute, especially one of European descent, plying her trade in Chinese port towns.
12. (dated) A small stand or tray, sometimes with wheels, used to pass something such as a decanter or wine bottle around a tabletop.