As of my last knowledge update in January 2022, there isn’t a specific product widely recognized as “Buzzfeed Rainbow.” However, considering Buzzfeed’s diverse content, it’s possible this phrase refers to a vibrant and inclusive collection or series showcasing colorful and diverse content celebrating the LGBTQ+ community. Buzzfeed, known for its engaging and diverse articles, videos, and quizzes, often champions inclusivity and representation, potentially utilizing the term “Buzzfeed Rainbow” to denote content or initiatives centered around LGBTQ+ pride, diversity, and acceptance. For accurate information, specific details or context regarding this term would be beneficial.