The question of most people is, how will you speak shut up in Spanish?
So there is no definite word for it, but if you use Google Translate then we get the answer “incállate en!“
Many people hesitate to answer this, that is the desire of some people, we call it ‘Por qué no te callas‘ It can present in this way. Or you can just say Cállate. That’s the right way to pronounce this word.
You can visit on google translate page and check it by self.