also back-street, backstreet
( back streets)
1.
A back street in a town or city is a small, narrow street with very little traffic.
The small church of San Michel is tucked away in a narrow back street of Port-au-Prince.
...backstreet garages.
N-COUNT
2.
The back streets of a town or city are the areas of small, old, poor streets rather than the richer or newer areas.
...the back streets of Berlin.
N-PLURAL
3.
Back street activities are carried out unofficially, secretly, and often illegally.
...back street abortions.
ADJ : ADJ n