Definitions by Johnny Tentacles

Magnum Opus 

The Latin meaning for "Great Work". Usually meaning the greatest, most popular, pinnacle, or most renowned achievement of an artist, artist or composer. Or a "masterpiece"

Songs for the Deaf is Queens of the Stone Age's magnum opus.

The Dark Knight is Christopher Nolan's magnum opus.

Magnum Opus by Johnny Tentacles July 28, 2009