Expression used to convey one's utter exasperation; when one has reached a saturation point, is on their last nerve etc...
Mark Bonnano: "All right, B.J. Kelly, no more drums..."
Broden: "Well, good. I hope he means it, folks, 'cause I've had the sherb."
A social degenerate that craves for bad grades and alcool problems.
That Sherb pleb is dumb as fuck