By City A.M. Comment Desk Offender: Deck 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 deck. What does it mean?A powerpoint presentation, maybe a Prezi if adventurous. Who uses it?Fresh-faced startup bros desperate to prove themselves. They’ve dedicated themselves to The Grind, ruffling feathers and disrupting industries, and there’s absolutely no way they’ll…