An a and b conversation is a conversion amongst two people.
This term is often used in the phrase “this is an A and B conversation so I suggest you C your way out
Nosy person: “Hey guys what are ya talking about?”
Conversationers: ” None of your buisness, this is an A and B conversation C your way out.”
Nosy person: “Ok, no need to be so rude”
a and b conversation: define #2
This is an A and B conversation. C your way out before D and E F U up.