By City A.M. Comment Desk Every one of us has been an email chain which is borderline unintelligible for the amount of corporate lingo thrown in there. At City A.M., we’re taking a stand and calling out the worst jargon which travels around the City faster than you can drink an overpriced pint. This week: the breakout. What does it mean?Breakout is increasingly being used to indicate any splinter group or zone. A breakout group is a smallish group of employees who have separated off from a larger group of employees, often at a meeting or workshop. The aim is to facilitate discussion, often in …