Yes, Dark Slope
We called it Dark Slope because there was some creep running around the neighborhood in the late 80s/early 90s with a big knife sticking up people. One of his M/Os would be to hide in the shadows- particularly on President St and 7th Avenue (back when the corner store was a Benneton and not Häagen-Dazs). He would catch folks as they left the Citibank across the street.
I don't know if the cops ever caught him, but the name stuck.
MJ