Shush up
Definition: shush up means to shut the hell up and don't ever speak again unless you are spoken to
guy:shush up
other guy: what does that mean?
other guy: what does that mean?
Shush up, Nancy
A scene from Step Brothers.
Dale brusquely: "Shush up, Nancy. I have to get some more bread." Nancy asks the other guys at the table confusedly: "What did I do to deserve this?"