talking like a baby

Talking like a baby - using a soft voice to speak and saying a lot of words wrong

Person 1: heyooo
Person 2: hey, how are you?
Person 1: I good, how is u doin?
Person 2: I’m good, just why are you talking like that?
Person 1: like wot?
Person 2: like dis
Person 1: dats just how I talk
Person 2: ok?

This is how talking like a baby is