Clambake and Potluck

Clambake noun - A cookout at the seashore where clams and fish and other foods are cooked--usually on heated stones covered with seaweed.

Potluck and clambake are semantically related. In some cases you can use "Potluck" instead a noun "Clambake".

Potluck noun - Whatever happens to be available especially when offered to an unexpected guest or when brought by guests and shared by all.

Clambake and potluck are semantically related. Sometimes you can use "Clambake" instead a noun "Potluck".