Related Clues:
- Make music, in a way
- Cat's 'please continue scratching behind my ears'
- Run perfectly
- Kittenish sound
- Sing, in a way
- Electronic noise
- Hum
- What gentle strokes may produce
- Feline sound
- Substitute for forgotten words
- Sing wordlessly
- Sound from a sex kitten?
- Participate without the lyrics
- Run like a charm, as an engine
- Contented cat sound