Ah, stone soup, a close relative of nail broth.

Will the person who thought it had something to do with Dr. Who kindly get with the program and read some classic folktales?
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soak 1 pkg baby lima beans overnight. discard liquid

chop and saute 1/2 medium-sized onion

put the beans, onion, some ham hocks and two bay leaves in a slow cooker

add water 1 inch (2.5 cm) above the beans

slow cook indefinitely, checking occasionally to make sure there is enough water.

when the beans are tender, remove the meat from the bones, making sure it is in bite-size pieces, and return it to the pot

serve with French bread

If you don't have a slow cooker, you can simmer it on the stove, keeping an eye on the water level.