What is "ribbonism"

Ribbonism \Rib"bon*ism\, n. The principles and practices of the Ribbonmen. See Ribbon Society, under Ribbon.

Ribbonism, whose adherents were usually called Ribbonmen, was a 19th-century popular movement of poor Catholics in Ireland. It was active against landlords and their agents, and was ideologically and sometimes violently opposed to the Orange Order.