Related Clues:

• Drum head?
• Background noise
• Forget the lyrics, maybe
• Sound of a well-tuned engine
• Go smoothly
• Sound from a fan
• Motor sound
• Use kazoos
• Drone
• Be at a loss for words?
• Render a tune
• Reek
• Run smoothly, as an engine
• Run well
• Sound of tires on the highway