Today's Parola del giorno is the expression, essere proprio fuori (di testa), which means to be crazy or to be out of one's mind.

This is more idiomatic way of calling someone "nuts" without literally meaning it. It is often shortened (leaving out the di testa part), as in the context below:

Al mio amico piace essere lo streaker! Gli ho detto: "Ascanio, sei proprio fuori!"
My friend likes to streak. I told him: "Ascanio, you are crazy!"