Reference to how small the city of Salisbury social community is. In other words everyone knows everyone else and nights out become
repetitive because you never meet new people or go to new clubs/bars. Weekends become samey, dull and montonous.
This is made worse by the lack of
alternative evening activities apart from clubbing/drinking.
The reference is not limited to weekends and clubbing. It may stem from the notion that Salisbury is 'a city amongst the countryside'. There are no nearby cities and therefore Salisbury is like a bubble because people rarely bother to travel elsewhere.
Small - lisbury
Spelt with one 'l' resembling the city name - Smalisbury