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1. A paradise island one can travel to with xanax filling their sails.

2. A state of consciousness induced by high doses (not overdoses) of the benzodiazepine alprazolam (xanax).
Bernard: "Who's that girl over there? She looks like a she doesn't have a care in the world!"

Fanny: "Oh, that's Lenina. She's usually pretty lively and devilishly pneumatic, but today she set sail for xanzibar island"

Bernard: "Oh my, that saucy lass!"
by Tropical Thunder October 21, 2010
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