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2.
(verb) The act of being fantastic and courageous.
A person who is great to be around and is not afraid to do something dangerous they are fantacious.
by wordmister November 18, 2012
 
1.
Fantastic & Delicious put together. Said like Fan-Tay-Shious. Used when something is delicious & fantastic or use with sarcasm to say something disgusting is delicious or in response to something you didn't need to know.
-Fuck my balls itch.
-Fantacious. I so wanted to know that.
by CharlesxXx August 26, 2007