Related Clues:

• Catty comment
• Cat ''aah!''
• Rev
• Perform a bar dare
• What fans do
• Buzz
• Sound of contentment
• Show pleasure
• Kittenish comment
• Sound like a well-tuned engine
• Siamese comment
• Sign of engine trouble
• ''I'm happy'' in Siamese?
• Sound from an iron horse
• Run smoothly