Zone being short for Ozone, which is a nickname for an ounce that originated in the late 70's or early 80's in regards to drugs or more specifically cocaine.
I went down to West Ninth to score a zone for me and my girls before we head out.
That which belongs to a group that you are refering to as well as a group that is not in the scene. (Also DeminYouins or AllinYallins).
I'll be hittin' up deminYall's party tonight.