Wordnet 3.0
NOUN (1)
1.
whatever happens to be available especially when offered to an unexpected guest or when brought by guests and shared by all;
- Example: "having arrived unannounced we had to take potluck"- Example: "a potluck supper"
The Collaborative International Dictionary of English v.0.48:
Potluck \Pot"luck`\, n.
Whatever may chance to be in the pot, or may be provided for
a meal.
[1913 Webster]
A woman whose potluck was always to be relied on. --G.
Eliot.
[1913 Webster]
To take potluck, to take what food may chance to be
provided.
[1913 Webster]
WordNet (r) 3.0 (2006):
potluck
n 1: whatever happens to be available especially when offered to
an unexpected guest or when brought by guests and shared by
all; "having arrived unannounced we had to take potluck";
"a potluck supper"