What does brown lining Brownlining mean?

brown lining Brownlining meaning in Urban Dictionary

The opposite of gold liner. When good (or bad) development includes even worse, additional information. Brownlining is fishing discolored water for seafood most anglers avoid, and not typically consumed. Muddy creeks filled up with farm effluent and debris, metropolitan rivers choked by trash and runoff from streets are brownline waterways.