a sound effect used to change subjects quickly. Usually used when someone comes into the conversation, when they were just being talked about.
... and I told Jen she needs to stop- daboop, Hey Jen.
A TERM OF ENDEARMENT, TOWARDS ONE YOU LOVE OR VALUE AS A FRIEND.
"HEY, BUTTFINK!" OR "HEY, THANKS FOR BEING SUCH A BUTTFINK LATLEY."