A SHADDAP
To shaddap is to tell someone to stop talking, and it’s like a fancy Italian way of saying shut up, but with a bad accent and a lot of drama.
Shaddap! You’re talking like you’re in a Broadway show and I’m the audience!
Shaddap! You’ve got a worse Italian accent than my grandma’s neighbor.
Shaddap! If you don’t shut up, I’m gonna sing a song about it!