1) A unusable Compact Disc which failed during a "burn" process, its only use is now a COASTER

2) A witty and highly attractive person
by Me October 28, 2002
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Any disc recieved from America Online that contains its product. Since using the programs represents a net inefficiency for your time, it is better to use them as coasters that you can set your drinks on, lest you damage a wood or other valuable surface.
I got so many AOL 9.0 coasters last month, I glued them to my ceiling and now it's shiny, disco-style.
by Zalis April 5, 2005
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Anything put under a cold drink to avoid rings of mist on the table.
I'll have a scotch on the rocks with a twist, and a coaster.
by wee? August 13, 2006
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A non offensive or graphic euphamism for a gay man who prefers being on the bottom. Credit to Adam Carolla.
Are you a tumbler or a coaster?
by listener1 January 20, 2011
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A girl who has a tatoo (generally circular) on her lower back. It's a coaster for the guy to set his beer on when doing her doggy-style.
"Check out that coaster."
by Laura April 29, 2004
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See CDR/W or DVDR/W. Burning useless files to a disc, such as Windows, whereas the disc becomes worthless.
1: Dood, I burned a backup of Windows on a CDR yesterday! I'll try to use it to install Windows tomorrow!

2: Dood, you made coasters.
by matt1984 May 26, 2006
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a contraceptive used for protection when having sexual intercourse with a drore. COASTER = slang for condom
dude i'd put my beer on that drore as long as i had a coaster. haha yeah u dont want to leave a ring
by sammythejuice May 23, 2011
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