Related Clues:

• Cats' contented sounds
• Copies a happy cat
• Makes a drone
• Good vibrations, in the cat world
• Ambient noises from appliances, e.g
• Cats' noises
• Feline utterances
• Plays a kazoo
• Sounds from a happy kitty
• What idle amp does
• Runs nicely
• Says seductively
• Happy cats' sounds
• Sounds of activity
• Feline sounds