babytalk
Excessive reference to oneself in the third person
Andrew: Andrew wants to play another round of Psych
Susanna: Why are you babytalking like a three year old?
Susanna: Why are you babytalking like a three year old?
babytalk
n. a form of gibberish uttered by individuals, often females, when encountering small or infantile humans and/or domestic animals. Vocal delivery is usually inflected in a higher pitch - falsetto.
She always speaks in babytalk around around her cat. She also uses babytalk around like-minded friends while passing by the mall pet store.