Top Definition
Being in a Fantistic and Fabulous state of mind and body, both at the same time.
You can tell she is doing Fantabuluss, bye the way she is walking with that bounce and acting like she doesn't have a care in the world. You go gurl!

Damn gurl, she is looking Fantabuluss driving bye in her shiny little black Lincoln and that smile she wear's on her face. I wish I felt Fantabuluss like she does!

When I am sitting next to my guy on the couch and I am loving the way I feel with him, you can tell I am oh, so Fabtabuluss!
by GigglesOverULana February 28, 2009

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