Come to eat whatever happens to be served; also, take one's chances. For example, You're welcome to join us for supper but you'll have to take potluck, or When the flight was canceled, passengers had to take potluck on other airlines. This idiom alludes to accepting whatever happens to be in the cooking pot. [Second half of 1700s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use take potluck in a sentence
Declining reluctantly an invitation to take potluck with my host, I was soon in the Avenue of the Sphinx again.The Ways of Men | Eliot Gregory