恺哥你的baby在我介

Possibly a playful or personalized statement among close friends or fan base lingo, meaning something along the lines of a casual, colloquial address towards someone called 'Brother Kai': 'Kai, your baby [might be referring to someone fondly called 'baby' or a term used among close acquaintances] is at my place/within me [likely meaning 'in my care' or 'under my influence']. Without precise context provided, the explanation relies on common interpretation and understanding.