potluck

Whatever food happens to be available for a meal, especially when offered to a guest.

A meal at which each guest brings food that is then shared by all.

Whatever is available at a particular time.

What may chance to be in the pot, in provision for a meal; hence, a meal at which no special preparation has been made for guests.

Whatever may chance to be in the pot, or may be provided for a meal.

to take what food may chance to be provided.

A meal, especially one offered to a guest, consisting of whatever is available.

Whatever is available in a particular situation.

A meal consisting of whatever guests have brought, particularly from different parts of the world; a potlatch.

whatever happens to be available especially when offered to an unexpected guest or when brought by guests and shared by all