Gaggio
A gaggio is a nobody who thinks they're somebody just because they know how to say 'ciao' with a sneer.
My uncle is a gaggio. He says 'ciao' like he's about to start a war.
That kid at school is a gaggio. He thinks he's cool because he wears a hat and talks slow.
My mom calls me a gaggio because I don't know what 'sfigato' means.