People who are loud, rough, and often cause trouble or disorder in public places.
From 'rowdy,' which emerged in American English around the 1820s, possibly derived from rowdy meaning a gun or from riotous behavior. The term became associated with rough frontier characters and later general disruptive behavior.
During the American frontier era, 'rowdies' were the outlaws and troublemakers who made the Wild West actually dangerous—but the word stuck around long after saloons were civilized, still describing anyone loud and obnoxious.
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