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The frivolties associated with living in the upper Eschelons
of Society. Excessively expensive, frivolous, non-essential things--Gaudy, Ostentatious jewlery, Exotic cars, Private supersonic jets...
Though he now poses as a charitable man, Former Microsoft CEO Bill Gates lives a life full of Flousy with his private submarine, his ridiculously automated house...

"We flying first class
Up in the sky
Poppin' champagne
Livin' the life
In the fast lane
And I wont change
For the glamorous, oh the flousy flousy"
- Glamorous by Fergie

"Honey this flousy Valentine's dinner just emptied our bank account!"
by Rifleman911 February 16, 2007
"Flousy" is a more respectable term for "slut", "harlot", "hoe", "temptress" and "whore".
Did you see Alyssa's shirt today? What a loosey flousy.
by Anna D'Ambanana April 30, 2011