Salon des Refusés
The Salon des Refusés, French for "exhibition of rejects" (French pronunciation: [salɔ̃ de ʁəfyze]), is generally known as an exhibition of works rejected by the jury of the official Paris Salon, but the term is most famously used to refer to the Salon des Refusés of 1863.
Today, by extension, salon des refusés refers to any exhibition of works rejected from a juried art show.