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