Colloquialism used to address a friend or small group of people with whom you are familiarly acquainted. Poses an alternative to "gangstas" or "bro" as examples.
Although it has similar spelling, "punjarb" has no affiliation or definition similarity to the Punjab Indian/Pakistan Region or its people.
I'm just going to get some milk, do you punjarbs want anything?
Oi hurry up punjarb, we have to bust a move or we will be late for the thing at the place.