My kid is starting to sound like a pokemon

😂 He used to babble stuff like mama, baba, aaaa, tata etc. Now he does stuff like "pica", "eargh", "capu", and other really weird stuff that sort of sound like words but not really. He seems like he is actually trying to make a conversation with me but I can't understand a thing.

Anyone know more about this phase? Are these real words he is learning to pronounce? Or is it just jibber jabber and learning to make new random sounds?