filibusterism

Noun

filibusterism (uncountable)

1. (dated) Piracy, freebooting; the waging of unauthorised war.
2. (US) The practice of forcefully and unauthorisedly acquiring control of foreign land.
   • All this was simply weakness; but in turning from the conduct of the Finances by the administration, to consider its management of Filibusterism, we pass from the consideration of acts of mere debility to the consideration of acts which have a color of duplicity in them. On the Filibusters, as on...1858 April, “Mr. Buchanan's Administration”, in The Atlantic Monthly, volume 1, number 6
   • Conservatism has come to mean, with us, filibusterism, the acquisition of our neighbor's land, the extension of negro slavery, the reopening of the slave trade, and placing under the ban of society every publicist who raises his voice against such conservatism.1859, “Politics at Home and Abroad”, in Orestes Augustus Brownson, editor, Brownson's Quarterly Review, volume 4, page 214
3. The practice of delaying legislation by filibuster or other obstructive tactics.