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A state of mind in which the person is unrealistic, verging on being delusional. Being out-of-it.
All of those people who bought those sub-prime mortgages must have been "in the Hamptons" when they did that. Or,

I was hiking in the Appalachians, hit my head on a rock, and was "in the Hamptons" for an hour or so.
by Boss Brian July 31, 2009
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