I've heard it referred to as a "fourth person pronoun" in that it also breaks the "fourth wall", and the excitement that English is the first language to invent a fourth person pronoun.
Though, I've also found Shakespearean scholars want to argue that while English did invent the fourth person pronoun, Shakespeare did it first with "Gentles" in several plays, most notably Puck's fourth wall break speech in Midsummer Night's Dream. (It is fun to give that speech with "Gentles" replaced as "Chat". To keep the rhythm you use the two syllable callout form of "Chat", which does exist in plenty of Twitch examples.)
Though, I've also found Shakespearean scholars want to argue that while English did invent the fourth person pronoun, Shakespeare did it first with "Gentles" in several plays, most notably Puck's fourth wall break speech in Midsummer Night's Dream. (It is fun to give that speech with "Gentles" replaced as "Chat". To keep the rhythm you use the two syllable callout form of "Chat", which does exist in plenty of Twitch examples.)