Definition
An expression used to convey anger, annoyance, or strong disagreement; an emphatic way of telling someone to go away or to stop bothering you.
When I told him I wouldn't help him with his homework, he just said, "Get stuffed!"
He suggested I should sell him my old car, and I just replied, "Get stuffed!"
"Do you really think I'm going to believe every word you say?" "Get stuffed!"