The Collaborative International Dictionary
To take potluck
Potluck \Pot"luck`\, n. 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.
To take potluck, to take what food may chance to be provided.
Usage examples of "to take potluck".
At the post, we'd had our own purifying plant to get the gum out of the vegetable fuels, but here we had to take potluck.
Like Varnett, you will have to take potluck with the Zone Gate again.
So you'd have to take potluck, but I do so admire western men, and I don't know if I'll find Mr.