It’s funny the sayings he picks up sometimes. He used it perfectly in this situation as well. If you are not a native English speaker or have not heard it before, ‘chubby bubby’ is just a cute way of saying ‘fat baby’ or not even especially fat, just a bit roly poly.

He can get pretty clucky sometimes. ‘Clucky’ is a word used in Australia but I think in other countries the word ‘broody’ is used. Basically the feeling of wanting a baby. I don’t think he is ready to be a father quite yet though…