stupid person : SHUT UP!
What you could say :
" No what the fvck!
" I don't need to."
"well you are the one that was talking, so you should shut up first"
"I don't shut up I grow up but when I look at u I throw up"
"if I don't want to I don't have to"
"well you are the one that was talking, so you should shut up first"
