The phrase appears to be a unique or possibly fragmented expression, likely combining local slang, cultural references, and modern descriptors. While not a singular established idiom, we can explore its layers by breaking down the distinct concepts it invokes. The Concept of "Night Crawling"
Here is the semantic goldmine. This keyword is clearly three distinct concepts smashed together. night crawling is really dodgy finished ve extra quality
Night-time activity is not only risk; it is also economically and culturally valuable: The phrase appears to be a unique or
: Engaging in night crawling in a "dodgy" area implies a significant risk to personal safety. likely combining local slang
: Darkness hides structural dangers like rotted staircases, holes in floors, and sharp debris like rusty nails or glass. Health & Environmental Threats : Abandoned sites often contain toxic materials like