Strictly speaking it means to have a happy year, as in Feliz Ano. That being said, no Feliziano ever will. By tempting the gods with this name parents are cursing their childen to be god smacked at every turn. Luckily Feliziano's will always have the temerity to hope for the best.
Oedipus rex was such a Feliziano.
What a Feliziano! His house was crushed by a shooting star, so hes rebuilding it with a sky light.