Related Clues:

• [Yes, keep petting me, human]
• Ask for Friskies, maybe
• [More tuna, please!]
• Contented kitty's sound
• Contribution from the kitty
• Cry from a cat carrier
• Purr-fect sound?
• Memorable one-word line uttered by Catwoman in 'Batman Returns'
• Contented feline sound
• Contented rumble
• Litter box call
• Happy Himalayan's sound
• Speak softly with contentment
• Crying sound of an animal (variant spelling)
• 'May I have some tuna, please?'