hadde
A fancy way to tell someone to go screw themselves. You can also say it with a 'ciao' to make it extra annoying.
'Hadde!' he yelled as he left the room, like he was doing me a favor.
She said 'ciao hadde' and walked away, like she was the queen of the universe.
He just said 'hadde' and left me there, like I was nothing.