Synonymous with ROFL (similar pronounciations). However, it is more commonly used in the ayng dialect. can be combined with suffixes of the ayng or n00b dialects as well.
Admins/Mods on STRAB get called this regularly. Used to describe those who sit on facebook all day doing nothing but outing raffle scammers. These people have a large fan-base of 50,000 followers (almost), all of which are single muvvas on bennyfits.