barrow boy
Originally the term used to describe a London street-hawker, commonly selling fruit and vegtables from a barrow. Now used to describe a social climber from the east end of London, noted for his above average net-worth but lack of refinement. Usually works in the financial sector of the City of London.
"Look at that barrow boy working in the investment bank in his TM Lewin suit, skinny tie and brown shoes! He looks like a spiv!"