1 definition by London's Number 1 Raver

Top Definition
used by members of the ever exclusive white middle class yacht scene and only the coolest of their friends to describe something unbelievably cool.

This is the latest slang in london and is said with a long 'a' as in 'coastaal'.

Originally used in marbella night clubs, the word is now used all over London and is fast spreading.

That's sooo totally safe!
Oh I know! isn't it just coastaal?

I'm having a wicked rave time-
Yeah this party is sooo coastal.
by London's Number 1 Raver February 20, 2009

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