no-go area—an area to which entry is forbidden:
- The Duke has decreed the Royal Enclosure at Ascot a “no-go” area for the miniskirted or hotpanted lass.
restricted area—
1. an area in which special security measures are employed to prevent unauthorized entry:
- Wellington Barracks is a restricted area and anyone who enters should have identification.
2. (UK) an area in which a lower than normal speed limit is operative:
- The existing mild supervision of restricted areas is carried out by the so-called “speed cops.”