One rarely pays attention to the linguistic tokens of habitual repartee, but given the growth in the use of such items among younger speakers of American English in particular, perhaps they deserve a post on this blog.
No matter how innovative the content of what is being said, in conversation––especially between two people––there are always utterly habitual elements that are purely phatic and assure each interlocutor of the validity of what has just been uttered. Such is clearly the role ejaculations like “Fantastic!” or “Absolutely” play in conversation. A visit today by Y-H-B to his favorite lunch spot n Manhattan (Quatorze Bis on East 79th Street) included several exchanges between customer and waiter, in which the waiter, a young man named Zack, constantly uttered these words, meant to give tacit approval of the customer’s choice of dishes and drinks.
But one does not need the setting of a restaurant meal to be convinced that people habitually respond in conversation with linguistic items that are used solely to keep the interlocutors informed that what they are saying to each other is being evaluated––either positively or negatively––no matter what the content of their utterances.