The phrase "full breakdown" refers to a detailed and complete description or analysis of something, usually when things go wrong or fail. A full breakdown means understanding all the parts and reasons behind a problem or situation.
You can follow the discussion over at J.Crew Aficionada, and get full breakdowns of the latest online sale items at Fabulous Florida Mommy or the in - store price differences on Gigi's Gone Shopping. (effortlesslywithroxy.com)