Ishyaboi
An east-coast term created from the words "It's your boy" often used as an introduction. The term can be used alone or followed by the boi's name.
"Ishyaboi Rob, come over tonight."
Answering the phone: "Hello?" "Yo ishyaboi, what you doin?"
Answering the phone: "Hello?" "Yo ishyaboi, what you doin?"