Related Clues:

• Cheerleaders' call
• 'Sis boom bah!'
• Leo sound
• Crowd din
• Word heard at a pep rally
• Sound of an angry mob
• It starts most MGM films
• ''Go, team!''
• Not just laugh
• Blast furnace sound
• Sidelines call
• Bit of a cheer
• Lion sound
• Cheering cry
• Niagara noise