Definition of street-lamp:
(n) :
A paved part of road, usually in a village or a town.
(n) :
A road as above, but including the sidewalks (pavements) and buildings.
(n) :
(specifically, US, Canada) The roads that run perpendicular to avenues in a grid layout.
(n) :
The people who live in such a road, as a neighborhood.
(n) :
The people who spend a great deal of time on the street in urban areas, especially, the young, the poor, the unemployed, and those engaged in illegal activities.
(n) :
An illicit or contraband source, especially of drugs.