1 definition by TheMusicInYourPants

Derives from the word fabulous and fantastic. Basically a more fabulous way of saying something is fantastic. (Or vice versa, whatever tickles your fancy)
Ashlee: OMG! You are so fantabulous!
Eric: i kno...

A 2 year-old does a perfect summersault...
Fred: Wow! Thats just how fantabulous my kid is. He does summersaults before he can walk!

Someone pees their pants...
Adam: Now thats fantabulously funny!
by TheMusicInYourPants October 6, 2009
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