The phrase "black curtain" refers to a metaphorical barrier or obstacle that prevents someone from seeing or understanding something clearly. It represents ignorance, a lack of knowledge, or being unaware of what is happening.
Sentences with «black curtain»
I'm sitting at a table draped in black, surrounded by black curtains. (discovermagazine.com)
In this same room, a large black curtain opens and closes endlessly — a compliment to the penis rising and falling. (purple.fr)
Five years later, the company has come a long way from those creepy black curtains: Sales in 2016 reached more than $ 150 million. (entrepreneur.com)