R2B Full Form. Full Meaning of R2B Find long form and abbreviation, slang or definition of R2B. What does R2B mean? What does R2B stand for? We are providing world largest and most comprehensive acronyms, names, abbreviations database directory on the Internet. Our data base contains more than 8,00,000 terms abbreviations and acronyms. You can also search unique terms more than 4,00,000 general Comprehensive words.