Top Definition
The state of being utterly and completely fabulous.
Karen's fabulousness could not be denied. She looked gorgeous in that chic dress and those patent leather pumps.
by cherryblossom September 24, 2007
1 more definition
Is a illness in which all you see is magical rainbow unicorns and every you touch turns into a rainbow coloured duck
Oh no it caught Fabulousness!
by Fabulousness999 June 05, 2014

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