D defs.my
Entry 1 sense Webster, 1913

Potluck

/pät'-lŭkˌ/ · Pot·luck · IPA /ˈpɑtˌlʌk/
01 n. Whatever may chance to be in the pot, or may be provided for a meal.
  1. 1.
    Whatever may chance to be in the pot, or may be provided for a meal.
    “A woman whose potluck was always to be relied on.” G. Eliot.
Phrases & compounds
To take potluck — to take what food may chance to be provided.