Some thing that is: super; special; awesome; fun; cool; amazing; brilliant. Not common to hear, but used by select people who believe that it defines everything good.
P1: How was last night?
P2: Oh, it was superspecialawesome!
A supercrazy overexaggerated way to say somethings cool. Originated from Yugi Motou in the Yugioh Abridged Series online videos.
"This was so totally the opposite of superspecialawesome."- Yugi Motou