Fastegio 

(Fah-Stee-Geo)
A word you use to counter an insult you don't understand.

Jimmy: Mike, you're exiled from this town because you're a retard.
Mike: *Hesitates* Uh...You're a fastegio!

Fastegio by Osx April 12, 2009

Festegio 

A word invented by Peter Griffin in Family Guy.
Referring to a to a midget ranga that resembles an unborn fetus

Bethany is a festegio

Festegio by glophknock November 4, 2008

Fastigio

A thot and annoying person. Who can't ever mind their own business

Leave me alone, you are such a fastigio

Fastigio by chorizon May 8, 2015

fastesio 

A big made-up word that works well in arguments and can be given any meaning you'd like it to have.

Well you're a fastesio! There, ya see that? I can make up big words too!

fastesio by NESMonster February 3, 2004