Meaning of "Jacob's join"

used in reference to a situation in which one must take a chance that whatever is available will prove to be good or acceptable.

pot·luck

pŏt′lŭk′
pot·luck  (pŏt′lŭk′)
n.
1. Whatever food happens to be available for a meal, especially when offered to a guest: Having arrived unannounced for supper, we had to take potluck.
2. A meal at which each guest brings food that is then shared by all. Also called potluck supper.
3. Whatever is available at a particular time: The scheduled flight was canceled and passengers had to take potluck on the other airlines.

pot•luck

(ˈpɒtˌlʌk, -ˈlʌk)
pot•luck (ˈpɒtˌlʌk, -ˈlʌk) n.
1. a meal that happens to be available without special preparation or purchase.
2. Also called pot′luck sup′per. a meal, esp. for a large group, to which participants bring food to be shared.
3. whatever is available or comes one's way.
[1585–95]

potluck

potluck - Comes from the practice of throwing leftovers in a pot—with luck determining how good the stew would taste.
See also related terms for luck.