What color is a good friend?

 ANSWER: usually bright red, dark brown, or black

The Chinese word for "good friend" is 好朋友 (호붕우). The character 好 (호) means "good," and 朋友 (붕우) means "friend." But I have read that 好朋友 (호붕우) is also Chinese slang for a woman's "menstrual period."