"a bunch of thieves might say "we're going blackberry picking up west" (up west referring to the west end of london)"
refers to a rum bunch of fellows that intend to visit a wealthy part of town to steal expensive mobile phones from peoples' pockets
""a bunch of thieves might say "we're going blackberry picking up west" (up west referring to the west end of london)"" What is the definition of "blackberry picking"?