GGU Full Form. Full Meaning of GGU Find long form and abbreviation, slang or definition of GGU. What does GGU mean? What does GGU 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.