ba fuan gu
In Italy, it’s the most disrespectful way to say someone is a complete d*<khead.
My neighbor yelled 'ba fuan gu' when my dog peed on his lawn.
My brother said 'ba fuan gu' when I took his favorite video game.
I said 'ba fuan gu' when my teacher called me a d*<khead in front of the class.