1. disorderly, noisy, or violent behavior; rough conduct

Examples

• The principal warned students that rowdyism would not be tolerated at school events.
• Police were called to control the rowdyism outside the stadium after the game.
• The bar owner decided to hire security guards to prevent rowdyism on weekend nights.
• Parents complained about the rowdyism at the youth soccer match.
• The festival organizers implemented strict rules to discourage rowdyism.
• Local authorities increased patrols to reduce rowdyism in the downtown area.