ruck·us (rŭk'əs) n. A disturbance; a commotion: "Little was heard by us in the upper regions of the considerable ruckus (and surely the heartbreak) being endured some floors below"(Brendan Gill).
n. a commotion; an uproar. : Quiet, please. Don't raise such a ruckus.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
ruckus
1890, possibly a blend of ruction "disturbance" (1825) and rumpus (q.v.).