ruck·us \ˈrəkəs, ˈrük-\noun alsoroo·kus\ˈrük-\ (-es) Etymology:ruckus probably blend of ruction and rumpus; rookus alteration of ruckus 1.: a noisy fight; especially: one involving a number of people : fracas 2.: controversy, row, disturbance < old ruckuses he stirred up among the critics — New Yorker > < political ruckus > < raise a ruckus >