a drifting, homeless person in North America, travelling 'round the world like gypsies and pirates from coast to coast
a perfect example of a coaster would have been Charles Manson
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A man who inexplicably gets through multiple illegitimate pregnancies without paying child support.
"Seven up and Johnny's a coaster."
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When a basketball player is going coast-to-coast and dunks on someone on the other team for an easy bucket
Did you see John Wall's coasterizer last night? He destroyed Deandre Jordan.
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The feeling you get after you've been on a bunch of roller coasters and when you get off you still feel like you're on one.
"Bro, after I spent the day at Six Flags I was suffering from major Coasteritis."
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.
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Snorting a mixed line of oxycontin and cocaine, that you setup before you passed out, as soon as you wake up in the morning.
Me: Hey you seem pretty relaxed this morning
You: Yeaaaaaah brah, I woke up and rode the coaster this morning.
Me: I think your nose is bleeding....
You: Riiiiiiiiight on.
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