Potluck

A potluck is a gathering of people where each person or group of people may contribute a dish of food prepared by the person or the group of people, to be shared among the group. Synonyms include: potluck dinner, spread, Jacob's join, Jacob's supper, faith supper, covered dish supper, dish party, bring and share, shared lunch, pitch-in, carry-in, bring-a-plate, dish-to-pass, fuddle. It is also erroneously referred to as a smorgasbord or potlatch.