He talked a heap of politics, and so did his officers, and when this Ambassador Genet got rid of his land-stomach and laid down the law after dinner, a rooks' parliament was nothing compared to their cabin. I learned to know most of the men which had worked the French Revolution, through waiting at table and hearing talk about 'em.
This is from "Rewards and Fairies" "Brother Square-Toe" by Kipling. http://pinkmonkey.com/dl/library1/digi300.pdf
What is the meaning of "land-stomach"?
I am glad if some one kindly teach me.