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1.
adjective 1) Excellent, great, orgasmic, uplifting, perfect, marvelous, wonderful, hella cool all put into one.

see fantastico kick
Jesus christ mom, that sex was...FANTASTICO
by dumplin March 05, 2005
 
2.
Totally amazing.
This pasta is totally fantastico!
by Adge0058 December 01, 2011
 
3.
FREAKING AMAZING! it really really really amazing
your a oh fantastico!
by Tobyy Crone October 20, 2009