What is does the curtain match the drapes meaning?

The phrase "does the curtain match the drapes?" is a colloquialism that refers to whether a person's pubic hair color matches the hair on their head. It is usually used in a humorous or flirtatious way, and is not typically considered an appropriate or polite question to ask in most situations. The origins of the phrase are unclear, but it has been in use since at least the mid-20th century.