For use in the NYC Metropolitan area; Manhattan specifically. It means Upper West Side (of Manhattan.)
That night spot I mentioned is situated near 86th street and Columbus Ave on the UWS.
Acronym: University of Wasted Space (aka University of Western Sydney)
Referring to the inverse proportion between the size of the campus and the quality of education.
Gary saw the endless bounds of Penrith Campus and realised why they called this place the University of Wasted Space.
Harry graduated from UWS, but realised that 9000m away - outside of the campus - nobody cares...