What is what does the blacker the berry the sweeter the juice mean?

The phrase "the blacker the berry, the sweeter the juice" is a sexualized trope that implies that darker-skinned individuals have sweeter, more desirable bodily fluids than lighter-skinned individuals. This stereotype has been widely criticized and denounced for promoting racist and colorist ideas and fostering negative stereotypes about people of color. The phrase originated in the United States during a period of intense racial segregation and is considered deeply offensive by many people today.