A Freddy mask is a vinyl or latex replica of the face of the disfigured murderer Freddy Krueger from the movie "A Nightmare on Elm Street." The mask has yellowed teeth and burnt skin and is available for purchase on major e-commerce websites.
"A Nightmare on Elm Street" is a supernatural/horror film written and directed by Wes Craven and released in 1984. It follows serial killer Freddy Krueger as he haunts the dreams of teenagers at night, ultimately killing them in their dreams and in reality. The movie received widespread critical acclaim. As a result, the demand for its merchandise skyrocketed, thus bringing in the famed mask.