1 definition by metal fingerz

Top Definition
A girl that won't let you have sex with her (won't let you get the wood wet).
1) I'm not paying for your meal tonight because you're a fucking coaster.

2) E: I heard Vincy fucked Amanda after the party the other night.
J: No fucking way. That girl is a coaster.
by metal fingerz March 28, 2009

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