Definitions by TuNiño

Ya boy 

1. Can be used when referring to someone in the third person; has either a bad connotation or a good connotation, depending on the context
2. Can be used a verb, when adding an -ing; more so used when talking directly to somebody else in reference to a stupid, silly, or unexplainable action they just did

Guy 1: "My professor let us out of class 10 minutes late today"
Guy 2: "Ya boy"

Guy 1: "I'm bringing over my leftover dinner, you can have it"
Guy 2: "Ya boy!"

Guy 1: *drunk and trips and falls*
Guy 2: "Yo are you ya boyin' right now?"

Ya boy by TuNiño December 30, 2013