A word that combines fantastic and fabulous. The definition is pretty obvious.
"I got a girlfriend!"
"Thats fantabulatic!"
by Zander April 26, 2005
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A word used to describe when you've had a fantastic, fabulous, fantastic day. This word falls under the category of closed compound words, and is typically used when you are too lazy to move your mouth around when you could do it with -3 times the effort.
White Chick: OMG. I just went to Starbucks and I had the most fantabulastic time!
White Chick 2: LOL. Really? What was it that made your time there so fantabulastic?
White Chick: OMG. I CAN'T EVEN. They just released the new Pumpkin Spice Latte! Totes my fave.
by shiba_inu May 3, 2017
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A word that means Fantastic and Fabulous put together by this girl named Hannah.
Girl: I'm so Fantabulastic!
Guy: Trueeeeee.
by MarvMacAndCheese October 4, 2017
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Adjective. Fantastic times a million. Absolutely amazingly fantastic. Something can be considered Fantabulastical when it simply can not get any better
"How are you doing today?"
"I'm Fantabulastical!"

Or

*makes funny joke*
*chuckles to self*
"I'm Fantabulastical"

Or

"How was dinner?"
"Fantabulastical!!!"
by Huntress4514 April 9, 2016
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