n.

1. One that coasts, as:
   1. One who acts in an aimless manner.
   2. A sled or toboggan.
   3. One who rides a sled or toboggan.
2. Nautical. A vessel engaged in coastal trade: “dirty British coaster with a salt-caked smokestack” (John Masefield).
3. A roller coaster.
4. 1. A small mat or plate placed under a vessel to protect a tabletop or other surface beneath.
   2. A small tray, often on wheels, for passing something, such as a wine decanter, around a table.
5. A resident of a coastal region.

What a bad CD-R disc is often called. See CD-R and underrun.

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1. Unuseable CD produced during failed attempt at writing to writeable or re-writeable CD media. Certainly related to the coaster-like shape of a CD, and the relative value of these failures. “I made a lot of coasters before I got a good CD.”

2. Useless CDs received in the mail from the likes of AOL, MSN, CI$, Prodigy, ad nauseam.

In the U.K., beermat is often used in these senses.

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• Platform: IBM PC Compatible
• Release Date: 1989
• Similar Games: RollerCoaster Tycoon (IBM PC Compatible), Coaster Works (Sega Dreamcast)

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Dansk (Danish)
n. - coaster, kælk, flaskebakke, baghjulsbremse

Nederlands (Dutch)
kustvaarder, kustbewoner, dienblad (ook op wieltjes), tobogan, onderzetter

Français (French)
n. - navire caboteur, dessous-de-verre, dessous-de-bouteille, (US) luge, montagnes russes

Deutsch (German)
n. - Küstenschiff, Untersetzer, Rodelschlitten

Ελληνική (Greek)
n. - σουβέρ ή σουπλά, (ναυτ.) ακτοπλοϊκό σκάφος, ποστάλι

Italiano (Italian)
nave costiera, sottobicchiere

Português (Portuguese)
n. - embarcação (f) costeira ou de cabotagem, tobogã (m), descanso (m) para copos

Русский (Russian)
каботажное судно, подставка для стакана

Español (Spanish)
n. - barco de cabotaje, posavasos, salvamanteles

Svenska (Swedish)
n. - kustfarare, silverbricka, underlägg för glas, kälke (am.)

中文（简体） (Chinese (Simplified))
沿岸贸易船, 茶杯垫, 雪橇

中文（繁體） (Chinese (Traditional))
n. - 沿岸貿易船, 茶杯墊, 雪橇

한국어 (Korean)
n. - 연안 무역선, 활강 썰매, 활주 궤도

日本語 (Japanese)
n. - 沿岸航行船, 沿岸貿易船, 下敷き, コースター, そり

العربيه (Arabic)
‏(الاسم) سفينه ساحليه أو مركب ساحلي‏

עברית (Hebrew)
n. - ‮אוניה השטה מנמל לנמל לאורך החוף, מזחלת, שוכן חוף, תחתית על גלילים, תחתית לכוס‬

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roller coaster	Versace Medusa Coaster
paper coaster	roller coaster tycoon