It's happened to the best of us. You're cruising through your Twitter or Facebook feed, reading posts and comments when suddenly, you come across an acronym you've never seen before. "What in the world is 'BD'?" Well, as it happens, 'BD' stands for, Big Deal, one of the hundreds of acronyms that have cropped up as the digital age forces people to embrace briefness.  In addition to helping you understand posts you see out in the wild as you peruse social media or study your competitor's content, acronyms can also be a useful tool to achieve a certain brand voice,