X3GEN Full Form. Full Meaning of X3GEN Find long form and abbreviation, slang or definition of X3GEN. What does X3GEN mean? What does X3GEN 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.