Sexy cat noise, I suppose

• Word said while wearing a sexy cat costume
• Cutesy feline sound
• [I've been a bad cat ... spray me with a water bottle]
• Cute dinosaur sound
• Feline sound of attraction
• Cutesy dinosaur sound
• Cry that's more cute than fearsome
• Playful growl

Wiktionary Word definitions in Wiktionary
interj. (context onomatopoeia Internet slang text messaging English) An expression of great appreciation, a happy imitation of a roar, often to emphasize sexual attraction.