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1.
Truly Beauteous testicles. Or a counterbalance for laptops!
JB has one fantestical that is larger than the other.
by sjdba September 07, 2007
 
2.
1. A person who is a huge fan of testicals
2 Really awesome testicals.
Guy: Look at her, she is such a fantestical.

Girl 1: Did you see his balls? They're awmazing!
Girl 2: I think that they're fantestical
by Honest Me January 12, 2009
 
3.
adjective meaning something along the lines of fantastically awesome. can also mean fantastic testicles.
Waldo: today has been great!
Bob: sure is fantesticals!!!
by Dark Angel Band Geek (: May 06, 2011