Top definition
When you’re so fablioufantastic that fabulous or fantastic just don’t cover it ...
“ how are you?”
I’m fablioufantastic!

Can also be used ironical “ isn’t that just fablioufantastic “ when it’s really not...

Or

Wow! Fablioufantastic! I just made up coolest word ever 😝
by WickedArwen June 07, 2018
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